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Organizations, support & community

Find condition-specific charities, clinical organizations, practical help and peer connections. Filter by topic, service and region.

238 provider entries · Official pages checked 24 October 2026 · Listings describe scope, not rankings.

238 provider entries. Archived resources are separately labelled.

Clinical education · International

AAO EyeWiki

Detailed response patterns, differential and management discussion for clinician consultation; not a home drop-testing recipe.

More about this organization’s scope

Detailed differential and testing discussion for use with a clinician; not a home testing protocol.

Overview of anatomy and causes to discuss with clinicians; not an emergency decision tool or self-treatment guide.

Detailed pathway and differential information for discussion with a clinician, not self-localization or a home drop test.

Detailed discussion of implant types, support and surgical options. Technical education, not a personalized surgical recommendation.

Detailed ophthalmic overview with references; technical material is not a personalized management plan.

Detailed phenotype, imaging and management reference. Specialist assessment is needed for individual treatment choices.

Anatomy and differential diagnosis to discuss with a specialist. Some treatment summaries rely on older references and are not a self-treatment algorithm.

Explains the broader eye syndromes and differential; not an active support group or personal cancer screening plan.

Mechanism, differential and treatment-planning context for clinician discussion.

Detailed anatomy and differential diagnosis; specialist-oriented education rather than a personal diagnostic service.

Explains the key optic-nerve distinction between neighboring anatomical syndromes; not a triage checklist.

Anatomy, signs, investigation and treatment controversy; technical material does not replace urgent trauma assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

aaojournal.org — linked resources

Technical reference for distinguishing lesion types and management contexts; ask a retina clinician to interpret it for your findings.

More about this organization’s scope

Detailed guidance useful for specialist discussions about symptoms, scans and intervention.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Professional organization · United States

Academy of Neurologic Physical Therapy

Guideline summaries explain peripheral-hypofunction rehabilitation. This is clinical information rather than a patient community or an individual exercise prescription.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

AHA cervical-dissection statement hub

Official summary, statement and explanatory material for shared discussions with specialists.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Alzheimer’s Research UK — PCA support

Practical signposting to PCA support and family experience.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

American Academy of Ophthalmology

Current2026 screening framework, with technical explanations of patterns and testing.

More about this organization’s scope

Current patient overview of the linked corneal and pressure problems.

Current patient explanation of herpes simplex eye disease and clinician-directed care.

Professional patient education on concerning photo signs; not an invitation to self-diagnose.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International · United States

American Association for Pediatric Ophthalmology and Strabismus

Condition-specific information to discuss with the treating team.

More about this organization’s scope

Official association website with a pediatric ophthalmologist directory and patient resources; a listing does not guarantee access.

Accessible background and official pediatric clinician-directory links.

Family explanations of causes, treatments and practical questions for pediatric eye care.

Child-focused explanation and official clinician-directory links.

Accessible child-focused explanation and official clinician-directory route.

Explains when genetic eye evaluation may be appropriate, including congenital or juvenile glaucoma. This is education and specialist discovery, not an ARS treatment service.

Explains adult alignment problems and links to a specialist directory; local referral and coverage requirements vary.

Accessible explanation and links to the society’s clinician directory.

Child-focused explanation, including large/persistent lesions and anesthesia considerations.

Useful explanation of testing and symptom variability. Comparative treatment claims should be read alongside the trials summarized here.

Explains adult alignment care and links to specialist discovery, including functional reasons for treatment.

Current plain-language explanation of adult inward eye turns and why their causes differ.

Explains alignment care and links to clinicians; access, referral and insurance vary.

Explains adult eye alignment and links to specialist discovery; not every diplopia problem is strabismus.

Accessible explanation and official clinician-directory link.

Explains congenital and acquired patterns and why some children show head tilt without reporting double vision.

Child-focused causes and examination information with official clinician-directory routes.

Accessible childhood and acquired-nystagmus information with links to the professional society.

Explains early-onset and acquired patterns, assessment and selected treatment goals; specialist access varies.

Pediatric eye explanation with links to related conditions and specialist resources.

Parent-oriented explanation of anatomy, symptoms and hospital care.

Explains why a white reflex needs evaluation and is not one diagnosis.

Childhood visual-development and treatment explanation, with official clinician-directory links.

Explains adult alignment care and links to specialist discovery; local access and coverage vary.

Current explanation of adult inward eye deviation, including different underlying causes.

Explains movement, childhood development and the limits of symptomatic prism or patch approaches.

Adult causes, treatment questions and specialist-directory routes.

Explains congenital and acquired palsy, childhood vision development and the limits of alignment and eyelid surgery.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

American Astronomical Society — safe viewer manufacturers

Official solar-viewer safety and manufacturer guidance. The list is not a guarantee against misuse and does not replace instructions for optical equipment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

American Behçet’s Disease Association

Disease education and community connections for people affected by Behçet disease.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

American Diabetes Association: eye health

Diabetes-focused eye information and routes to broader diabetes support; education does not replace a retinal assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

American Heart Association blood-pressure hub

Practical education on measurements and management to support a discussion with the treating medical team.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

American Macular Degeneration Foundation

AMD education, research grants, caregiver materials, rehabilitation and practical living resources. Its official domain is macular.org.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

American Nystagmus Network

Education, community support, awareness and research for people and families affected by nystagmus. A peer network, not a route to personal diagnosis.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

American Sexual Health Association

Plain-language syphilis information and a linked STI-testing guide. Its former Ask the Experts service is closed to new questions; archive material is not an active consultation service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Professional organization · United States · International

American Society of Retina Specialists

Retina-specialist patient fact sheets, large-print and translated materials, a patient podcast and a specialist directory. Clinical education; not a peer-support group.

More about this organization’s scope

Condition-specific explanation of imaging and the distinction from neovascular AMD.

Retina-specialist explanation of symptoms, history and diagnostic imaging.

Condition-specific explanation with large-print and translated factsheet links.

Patient explanation of nevi, imaging and the distinction between benign lesions and complications.

Retina-specialist patient information explaining retinal findings and treatment categories.

Explains routes, investigation and treatment, with a large-print version and a retina-specialist directory linked from the page.

Condition information, large-print and translated versions, with links to a retina-specialist directory.

Condition-specific clinical background, testing and care context.

Overview with large-print information and linked retina-specialist resources.

Condition-specific explanation of symptoms, examination and repair options, with large-print and Spanish versions linked.

Specific explanation of the silent finding, monitoring and retinal-detachment warning signs, with a downloadable factsheet.

Retinal-specialist education and links to a specialist directory; not an individual surgical recommendation.

Condition-specific information to discuss with the treating team.

Focused patient explanation and retinal-specialist education; treatment intervals require an individual plan.

Focused retinal-specialist explanation of scars, symptoms and neovascular treatment.

Condition-specific explanation of fragments, medical care and vitrectomy, with linked large-print and translated material. Generic risk figures should not be treated as personal surgical estimates.

Accessible explanation of central and branch arterial occlusion and retinal examination; not an emergency contact service.

Explains the tear–detachment relationship and clinician-directed treatment.

Explains central occlusion, swelling and neovascular risks; links to specialist resources.

Separate explanation of branch disease and its assessment and treatment.

Focused explanation of silent disease, vascular stages and treatment options.

Retinal-specialist explanation of light injury and prevention, with the society’s broader physician information.

Retina-specialist overview of eye examination, imaging and referral to ocular oncology. Treatment specifics should be checked against the current oncology plan.

Patient explanation of the vitreous–macula interface, imaging and management questions; verify injection availability against current local sources.

Defines vitreous and hemorrhage terminology, with links to retinal conditions.

Patient explanation of retinal splitting, childhood symptoms and complications.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

americanmigrainefoundation.org — linked resources

Doctor-verified education, care navigation and the Move Against Migraine Facebook community. The community is for support and shared experience, not diagnosis or individualized treatment; check its membership and moderation rules before joining.

More about this organization’s scope

Migraine-specific context; relevant when migraine contributes, not a diagnosis for every light-sensitive person.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States · International

AnCan and Visual Snow Initiative support group

Free virtual conversations for people with VSS and loved ones. Moderators are peers rather than treating clinicians; this is emotional and practical support, not medical advice. Check the host page for current dates, time zones and participation rules.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

Anesthesia Patient Safety Foundation postoperative visual loss overview

Explains perioperative mechanisms and prevention evidence; technical education, not a patient-specific fault or treatment assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Europe · International

Aniridia Europe — Clinical Guidelines

Links regional guidelines, professional resources and a wider aniridia support network.

More about this organization’s scope

Organization-owned route to national aniridia associations and community contacts. Use its country links to find relevant language and local eligibility; peer connection does not supply individual treatment advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · United States · International

APH ConnectCenter

Age-based family, education and home resources for children who are blind or have low vision. Useful for functional needs rather than a substitute for ARS-specific clinical advice.

More about this organization’s scope

Functional-vision, learning-media and mobility information, with a route to FamilyConnect. Peer connection is support rather than clinical advice. US-focused service discovery is broader than ONH; local eligibility and contact arrangements vary.

Family, school and rehabilitation resources for blindness and low vision.

Practical resources and service directory for visual disability. Useful if function remains affected after injury; not a rare-syndrome-specific clinic or emergency service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Education & services · India · International

Aravind Eye Care System

Cataract and other eye services, outreach, professional training and research. Check its own service locations and eligibility information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

ASOPRS: drooping eyelids

Explains causes, surgical goals and complications. Directory membership does not guarantee local coverage or suitability.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Autosomal Dominant Optic Atrophy Association

Family-founded charitable organization supporting awareness and research, with information and routes to updates. Statements on its story page are not individualized prognosis.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Canada

Balance & Dizziness Canada

Canadian patient education, advocacy and practitioner resources for vestibular and balance disorders. Not all causes of oscillopsia fall within the same care pathway.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

BCM Families Foundation

Research and family information specifically for blue cone monochromacy, not all red–green CVD. Its registry is an external, voluntary research service with separate consent and privacy terms.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Behçet’s UK

Listening, signposting, medical factsheets and an organization-linked patient forum; support staff do not provide urgent medical assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Europe · International

Belfast Trust: choroidal naevus leaflet

Explains community follow-up for selected stable lesions; its discharge statements do not apply automatically to every newly found nevus.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Benign Essential Blepharospasm Research Foundation

Condition-specific education, research information and a support-group directory. Availability varies by area; peer experiences are not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Birdshot Uveitis Society

Disease-specific information and patient support for birdshot; a peer route rather than urgent eye care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · North America · International

Birdshot Uveitis Society of North America

Patient-led support and birdshot research information; online education does not imply access to a particular clinic.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

Bliss — Emotional and practical support

Practical and emotional resources and organization-linked online parent-community routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Blood Cancer United, formerly The Leukemia & Lymphoma Society

Blood-cancer information, practical support and family groups. Services concern the underlying blood cancer, not every type of optic-nerve infiltration; eligibility and assistance availability vary.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Bobby Jones Chiari & Syringomyelia Foundation

Patient education, recorded talks and official community-event routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United States · Canada

BostonSight PROSE: clinic and access information

Information about specialist lens assessment, medical insurance and possible financial assistance for qualifying people. Access, fees and eligibility vary; provider surveys do not establish universal effectiveness.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Brain Aneurysm Foundation

Aneurysm education, recovery resources and in-person or virtual groups for patients and families. Confirm the individual meeting schedule and access; peer discussion is not urgent medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

BrightFocus Foundation: National Glaucoma Research

Glaucoma research funding and educational resources. Funding a research project is different from endorsing an available treatment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Professional organization · United Kingdom · Europe · International

British and Irish Orthoptic Society

Separate patient resources for visual fields, eye movements, inattention, perception and driving after stroke or brain injury.

More about this organization’s scope

Useful vision-rehabilitation information when the underlying cause is stroke or acquired brain injury.

Useful when INO follows stroke or brain injury; describes orthoptic assessment and practical support.

Explains assessment and practical vision support after stroke or acquired brain injury.

Practical visual assessment and adaptation information when the underlying cause is stroke or brain injury.

Useful when a brain injury or stroke is the cause; separates eye-movement, visual-field and perceptual problems rather than treating them as one symptom.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

British Association of Dermatologists: MMP

Broad mucosal-disease explanation produced with oral-medicine specialists. Last stated updateMay2023, with aMay2026 review target; not a new2026treatment guideline.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

British Thyroid Foundation

Thyroid education and volunteer support, including an organization-listed closed TED Facebook group. The forum page explains how to request access; it is peer support, not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Canada

Canadian Paediatric Society — clinical practice point

Detailed current pediatric assessment and management context, useful for questions about the care plan.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Canada · International

Canadian Stroke Best Practices — CVT

Detailed adult recommendations including vision and person-centered recovery; discuss with the treating team.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

cancerresearchuk.org — linked resources

Explains eye changes and routes to further information if cancer is suspected or confirmed; not a statement that every growth is malignant.

More about this organization’s scope

Moderated broader cancer community for patients and carers. Not an optic-infiltration-specific group or medical emergency service.

Moderated support for people affected by cancer and carers. Broader than paraneoplastic optic neuropathy; not an antibody interpretation or emergency service.

Organization describes a fully moderated forum for people affected by cancer and their carers. Broader than radiation optic neuropathy; peer discussion is not diagnosis or emergency care, and participation may require an external account.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Africa · Current program partners in Ethiopia, Niger, South Sudan and Sudan

cartercenter.org — linked resources

Explains ministry partnerships, community education, treatment delivery and elimination work; not a worldwide individual referral clinic.

More about this organization’s scope

Supports ministries and local teams with SAFE implementation, educational material and research; not a global direct-to-patient clinic.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

Centers for Disease Control and Prevention

Explains infection types, high-risk presentations and the limits of antibiotics for viral disease.

More about this organization’s scope

General disease context and distinction from variant CJD.

Current US preventive-vaccination recommendations, including prior shingles and immune-compromised populations. Discuss personal timing with the treating clinicians.

Explains immediate ophthalmic collaboration and why ocular disease needs a dedicated medical pathway.

Practical prevention, lens hygiene and backup-glasses guidance.

Current infection and testing information, including the distinction between usual cat-scratch disease and disseminated ocular disease; written for health professionals.

Diagnostic and management framework to discuss with a clinician, including when CSF testing is indicated; not a self-prescribing resource.

Explains treatment goals and the need to assess co-infection before taking medicine.

Condition-specific information to discuss with the treating team.

Explicitly distinguishes presumed ocular scars from rare active disseminated eye infection and explains why antifungals are not routine POHS care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia

Charles Bonnet Syndrome Foundation Australia

Dedicated CBS information, support, translations and links to a Facebook community. Social content and personal stories are for connection, not diagnosis; check the host’s privacy and participation rules.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Childhood Eye Cancer Trust

Family, survivor and young-person support, practical information and official connection routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

Children’s Hospital of Philadelphia — clinical pathway

Shows coordinated assessment and response monitoring; it is practitioner guidance, not a self-treatment protocol.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · Europe · International

Children’s Tumor Foundation

NF-specific clinic discovery, research and family education. Relevant to NF1-associated OPG rather than every sporadic optic glioma.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Choroideremia Research Foundation

CHM-specific patient toolkit, support, community and research information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

CJD Foundation

Family programs, support groups, helpline information and research updates.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Education & services · United States · International

Cleveland Clinic

An accessible clinical explanation of afterimages, possible causes and assessment. This is a medical information resource rather than a palinopsia charity or peer network.

More about this organization’s scope

Condition-specific information to discuss with the treating team.

Patient explanation of the sign and underlying investigation; a starting point for understanding a referral, not a personal assessment.

Multidisciplinary program information and formal appointment routes, not an endorsement of a specific outcome.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

Cochrane

Plain-language comparative evidence summary, not a personal prescription.

More about this organization’s scope

Explains older treatment evidence and its uncertainty; this is an evidence charity, not a symptom helpline or prescribing service.

Plain-language review of controlled evidence and its limitations, rather than personal treatment selection.

Evidence summary for seasonal/perennial allergy; not an individual prescribing service or patient forum.

Explains the limited randomized evidence for early surgery; not a decision tool for delaying urgent care.

Plain-language comparison of two DCR approaches and the uncertainty of direct trial evidence.

Explains the small randomized evidence base and why its findings need to be interpreted in the correct severity group.

Explains comparative-evidence gaps for painful recurrent surface breakdown.

Plain-language explanation of what comparative treatment studies do and do not establish; not an individual treatment plan.

Evidence limitations in nonpharmacological treatment studies.

Explains controlled graft comparisons and evidence gaps rather than recommending a personal operation.

Plain-language comparison of research and evidence gaps, not individual treatment selection.

Treatment-evidence summary to read alongside later trials.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

College of Optometrists

Public subtype explanation and patient guidance; detailed professional content requires registration and was not accessed.

More about this organization’s scope

Accessible patient summary and current update notes; additional professional material requires sign-in.

Current emphasis on immediate irrigation and same-day specialist assessment; full professional guidance may require sign-in.

Accessible overview and current referral considerations; full professional guidance is behind sign-in.

January 2026 public summary explains anterior versus posterior disease and urgent referral. The detailed professional section requires a login.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Japan

Color Universal Design Organization (CUDO)

Promotes communication and product design that work across color-vision differences. Focuses on usable information, including shapes, text and patterns alongside color.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Archived resource · United Kingdom · International

Colour Blind Awareness: archived information

The official About page says the organization has been inactive since 1 January 2025, may have outdated information and cannot answer enquiries. Use archived education material cautiously; do not expect current support.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

Columbia University — marginal keratitis reference

Short specialist overview of symptoms, examination findings and clinician-directed care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · United States

CONCUSS original research

Reports a defined treatment trial for selected adolescents and young adults after concussion, not open treatment enrollment or a self-help programme.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

Cornea Society IC3D publications

Authoritative classification and subtype templates; technical detail is best interpreted with a corneal specialist.

More about this organization’s scope

Technical classification reference for the distinction between endothelial and other corneal dystrophies.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Corneal Dystrophy Foundation

Webinars, patient education and Fuchs’ Friends, a private peer group for multiple corneal dystrophies. Joining requires an application and personal information; its specialist list is patient-recommended, not an independently ranked clinical service.

More about this organization’s scope

Fuchs-focused webinars and the Fuchs’ Friends private peer community, also open to other corneal dystrophies. Application and personal information are required; shared experience and patient-recommended specialists are not comparative clinical evidence.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Europe

Cure ADOA Foundation

Patient-led organization for ADOA and ADOA-plus, with practical information, peer days, country links and research updates. Check each event’s language and attendance arrangements. Peer discussion is not clinical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

CURE OM, Melanoma Research Foundation

Ocular-melanoma education and patient-support routes if specialist assessment raises that concern. This is not a nevus diagnosis service or a claim that benign nevi need cancer treatment.

More about this organization’s scope

Ocular melanoma education, specialist-center information and research resources. Its treatment-center list is a starting point, not a quality ranking or endorsement.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

CurePSP

Diagnosis-specific and care-partner peer groups, education and regional resources for PSP and related disorders. Peer stories are not individualized medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

DailyMed: US cenegermin prescribing information

Opened February 2025 revised label, including adverse effects and handling information. Local prescribing and availability can differ.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Denmark; Danish-language public information

Danish health portal — patient information

Institutional patient explanation and route to professional information. Broad short recovery statements do not guarantee an individual course.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United Kingdom · International

Deafblind UK

Practical and emotional support, technology help, employment information and a directory of deafblind-friendly opportunities. Service access is region-specific.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Diabetes UK: retinopathy information and support

Explains screening, diabetic eye changes and routes to the charity’s diabetes support services.

More about this organization’s scope

Condition-specific diabetes eye information and routes to broader diabetes support. Relevant to diabetic retinopathy, not every vitreous bleed.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States · International

Dry Eye Foundation — broader ocular-surface support

Non-medical community meetings, official connection routes and helpline information for ocular-surface difficulties. Relevant when blepharitis or MGD overlaps with dry eye; not a dedicated service for every eyelid diagnosis or a prescribing clinic.

More about this organization’s scope

Practical navigation, a helpline, discussion forums and scheduled groups for ocular-surface disease. Peer experiences are non-medical; commercial products and individual stories do not establish treatment effectiveness.

Relevant when ocular-surface disease is contributing to watering. It does not assess tear-duct obstruction or replace an eye examination.

Useful when associated chronic surface symptoms cause distress: education, practical support and peer meetings. No dedicated marginal-keratitis group is claimed.

Broader practical and emotional support for persistent ocular-surface problems, not an emergency infection service or dedicated organism-specific group.

Broader practical and emotional support for persistent surface symptoms; not a dedicated HSV treatment group or urgent-care service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Dystonia UK

Broader dystonia peer connection and events. Check whether a group has relevant eyelid-dystonia experience and current meeting arrangements.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

EAN/PNS GBS guideline

Useful for specialist discussion of diagnosis and overlap; most treatment evidence concerns typical GBS.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Epilepsy Foundation

Seizure education, action-plan information and support-group routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Europe

ESC2024 hypertension guideline hub

Technical source for systemic assessment and organ-damage context, with a 2025 corrigendum listed.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

Esme’s Umbrella

CBS awareness, support, information for children and adults, and research advocacy. Its support can complement sight-loss services and assessment; it cannot establish the cause of a new hallucination.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Europe · International

European Migraine and Headache Alliance

Find national patient organizations, advocacy initiatives and headache-care resources across countries. Membership and local services vary; not every association offers clinical care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

EXTRIP methanol clinical recommendations

Professional acute-care recommendations on extracorporeal treatment, not a patient home-treatment protocol.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Eye on Vision Foundation

Funds and publicizes visual snow research and provides symptom information, including afterimages. Relevant when palinopsia is part of assessed visual snow syndrome; it is not a dedicated service for every cause of afterimages.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · International

EyeMelanoma.org

Links to education, patient support, research and practical resources specifically distinguishing conjunctival and uveal melanoma; external-service eligibility varies.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

eyerounds.org — linked resources

Case-based explanation of idiopathic orbital inflammation and diagnostic uncertainty; a teaching case is not an outcome prediction.

More about this organization’s scope

Detailed case, imaging and differential discussion. A severe selected case is not a typical personal prognosis or proof of treatment effectiveness.

A real clinical retinal-image example with attribution and a stated image license. The photograph is a view of the retina, not a recording of the person’s vision.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United Kingdom · International

Face Blind UK — Members and meetings

Condition-specific information, member updates and online meeting connections for developmental or acquired face-recognition difficulty. Meeting availability and membership details are set by the organization.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

FDA EPIOXA prescribing information

Exact product, system, indication and trial scope. Technical procedural instructions are for trained professionals, not home use.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Europe

Fighting Blindness

Retinal research, Target 5000 information, counselling and support groups for people with sight loss and their families. Peer groups provide support rather than a personal treatment plan.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Canada

Fighting Blindness Canada

Funds retinal research and provides education, webinars and community events, including inherited-retinal-disease and AMD Coffee Connections. Community discussions are non-medical peer support.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

fightingblindness.org — linked resources

Funds retinal research, provides education and connects people through local chapters. Trial or registry participation is optional and handled on the organization’s own service, not through VisualSim.

More about this organization’s scope

Best disease education with broader retinal-disease chapter events, resources and community connections. This is not a Best-only group; local availability varies, and early research news does not establish personal eligibility or treatment benefit.

Condition-specific research education, genetic-testing information and low-vision resource links. Program eligibility and trial recruitment must be checked individually.

Research explanations and inherited-retinal community information. Registry or study participation is optional and involves the external organization’s own privacy process.

Research updates and community information. Confirm a specific study’s current recruitment and eligibility with its official study site, rather than assuming a news item offers access.

Inherited-retinal research information, community resources and optional research-participation routes. A study listing does not guarantee recruitment or eligibility.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States

Fireside Project

Trained peer support for difficult experiences during or after psychedelic use. It is broader than HPPD and explicitly does not provide clinical or medical care. It is not an emergency service; review current availability and privacy terms on the host site.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

FND Hope International

FND education, official support-group/event routes and patient advocacy information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United Kingdom · International

FND Hope UK — Peer support

Official group listings and registration information; no private group was accessed.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Foundation for Sarcoidosis Research

Sarcoidosis education, provider directory, research opportunities and patient navigators. Virtual peer support complements clinical care; check current registration and geographic eligibility.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · Swiss healthy-volunteer study; public access · International

Frontiers — research articles

Original research and representative recordings explaining why extreme-gaze movements need contextual interpretation.

More about this organization’s scope

Detailed diagnostic pitfalls and management discussion; expert synthesis is not individualized prescribing advice.

Detailed discussion for use with the care team, with explicit evidence gaps.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · United States · International

GARD ICE information

Rare-disease orientation and information-navigation routes. A research link is not a guarantee of an active recruiting study.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Canada

GBS/CIDP Foundation of Canada

Patient/family support, educational materials and meeting information for inflammatory neuropathies, including MFS context.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

GBS|CIDP Foundation International

Inflammatory-neuropathy education, peer connection and current events. Support covers several diagnoses, and personal recovery stories are not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia

Glaucoma Australia

Free education and support, treatment-adherence information, multilingual resources and research grants.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Glaucoma Research Foundation

Research funding, patient education and patient events. Its directory points to peer groups; listing a group does not establish the accuracy of its medical discussions.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Glaucoma UK

Research funding, information, support groups and a buddy scheme. Its HealthUnlocked forum offers peer conversation, not medical advice.

More about this organization’s scope

Childhood-glaucoma booklet, family stories, helpline and community routes. Broader glaucoma support is relevant when ARS causes glaucoma; it is not a dedicated ARS charity.

Glaucoma information, helpline and peer support when the detachment occurs in a glaucoma-care journey; not an acute surgical service.

Helpline, education, buddy support and group information for the glaucoma component of ICE. Not a dedicated ICE diagnostic service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Guthy-Jackson Charitable Foundation

NMOSD education, patient events, research information and a resource library; program availability is separate from clinical access.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

Guy’s and St Thomas’: pterygium

Current 2026 patient information and linked surgery explanation. Local service access requires its own arrangements.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

Harvard Ophthalmology

Explains differential diagnosis, imaging, biopsy and referral to orbital expertise. Written for clinicians; not instructions to self-start treatment.

More about this organization’s scope

Official academic reference to the 2024 adult guideline.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

headway.org.uk — linked resources

Practical brain-injury support and an organization-linked HealthUnlocked forum. Particularly relevant when brain injury is the cause; peer advice is not clinical guidance.

More about this organization’s scope

Broader rehabilitation, everyday-life and family support after acquired brain injury; not a dedicated rare-syndrome clinic.

Broader acquired-brain-injury support for everyday life and caregivers, not a dedicated Anton clinic.

Practical rehabilitation, daily life and family support after acquired injury.

Broader daily-life and rehabilitation support when acquired brain injury is the cause.

Broader rehabilitation and family support when acquired brain injury contributes, not a dedicated rare-perception clinic.

Recovery, daily-life, family and community support routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Africa · International

Helen Keller Intl — vitamin A and nutrition programs

Works with governments and local health teams on child nutrition, supplementation and food access. This is a public-health program, not a worldwide individual supplement-prescribing service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United States

Helen Keller National Center

DeafBlind vocational rehabilitation, regional representatives, accessible communication, technology and independent-living services. This is not a DDON-specific medical clinic.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

hopkinsmedicine.org — linked resources

Patient explanation of artery-wall injury, symptoms and investigations; current visual loss or stroke symptoms require direct emergency care.

More about this organization’s scope

Patient-level explanation of diagnosis, treatment and recovery, including the need for urgent care for neurological changes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

hydroassoc.org — linked resources

Relevant when hydrocephalus is the established underlying condition. Organization-run directory of peer networks; peer discussion is not medical advice or evidence for a therapy.

More about this organization’s scope

Resources for children, adults, families and transition to adult care. Community networks include local and virtual routes; confirm age eligibility and current arrangements. Peer support is not shunt assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

IgG4ward! Foundation

Disease-specific education, a physician network, events and caregiver resources. Some academy or community features require an account on the external service; VisualSim creates none and sends no data.

More about this organization’s scope

Public educational videos and caregiver material, including diagnostic uncertainty and treatment conversations. External apps and accounts are optional and separate from VisualSim.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

IIH UK

Condition-specific education and community, with a linked HOPE self-management program for adults and parents. Site notes some pages remain incomplete; program membership and availability need checking. IIH UK states programme access is for members; check course eligibility and availability. Group support does not replace eye monitoring.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

ILAE — Occipital lobe seizure

Condition-specific information to discuss with the treating team.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

Inflammatory Neuropathies UK, formerly GAIN

Current organization for inflammatory-neuropathy support, including group and individual peer routes. Confirm arrangements and relevance to MFS; not emergency or treatment advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · United Kingdom · International

International Centre for Eye Health — trichiasis research

Public directory of trials and studies on surgical outcomes, recurrence and quality of life; a research resource rather than an appointment service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

International Classification of Headache Disorders

Exact classification and comments; not a self-diagnosis or a wait-before-seeking-care rule.

More about this organization’s scope

The URL contains a historical neighboring-condition name, but its current title and body are the official THS criteria. It is a professional reference, not a patient forum.

Official classification with distinctions and qualifying comments; not a home diagnostic score.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

International Myopia Institute — pathologic myopia

Clinical summary distinguishing structural disease from high myopia, with access to the underlying report.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

International Pemphigus and Pemphigoid Foundation

Education and support for patients and carers with pemphigus or pemphigoid. The directory distinguishes US meetings from associations in other countries; peer experience is not individual medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Jack McGovern Coats’ Disease Foundation

Patient information and the Coats’ Ambassador Network for patient/family support.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · United States · International

Jaeb CALEC publication hub

Original publications about a specific experimental cultivated-cell approach. A publication listing is not an offer of treatment or confirmation of trial eligibility.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Joubert Syndrome & Related Disorders Foundation

Condition-specific education, medical-resource links and family connection. Peer participation is optional and does not replace care or establish genetic risk.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Keratoconus Self-Help and Support Association

Practical resources for school, employment and contact-lens appointments, with a forum and community connections. Peer discussion is non-medical.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Lewy Body Dementia Association

Support groups, social-worker connection routes, webinars and practical education.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

LHON Society

Patient-led information, community membership and research updates. Membership asks for personal information on the charity’s own site; peer support does not replace clinical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United States

Lighthouse Guild parent tele-support

Support for parents of children with visual impairment, with LCA among the listed groups. Participation requires enrollment; this is family support, not gene-therapy selection.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

Living Concussion Guidelines — Vestibular and vision

Current function-focused assessment and referral recommendations.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

Lowy Medical Research Institute — MacTel clinical research

MacTel Project registry and research-participation pathways. Some general web treatment text is older than the 2025 FDA approval; ask about current study status.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Lupus Foundation of America

For people taking HCQ for lupus: education, local support and LupusConnect information. This is lupus support, not a dedicated retinal-toxicity clinic; online community participation may require registration.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · Australia

Macquarie University: HPPD research

Institutional record of research into HPPD and overlapping perceptual symptoms. This is a way to read research and identify the research team, not a treatment clinic or confirmation that a trial is recruiting.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

MACS — Microphthalmia, Anophthalmia and Coloboma Support

Peer support, practical family help and activity opportunities for people affected by MAC conditions.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia · International

Macular Disease Foundation Australia

Condition information, a national helpline, research and practical support. Eye Connect is for AMD and diabetes-related eye disease; people with other macular conditions can ask the helpline about suitable services.

More about this organization’s scope

Explains inherited vitelliform disease and adult-onset terminology; its Best-disease focus does not establish that an acquired lesion is inherited.

Practical macular-disease information and support navigation; ask about eligibility for individual services.

Macular-disease support navigation and practical central-vision information; individual service eligibility varies.

Explains retinal complications and provides practical macular-disease support navigation.

Macular-disease support navigation and practical information for affected people and families.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Macular Society

A helpline, local groups, telephone befriending, counselling, accessible information and research funding. Peer support shares lived experience and does not replace clinical assessment.

More about this organization’s scope

CBS information, a support service and counselling or peer-support navigation. Its CBS counselling eligibility extends beyond macular disease; check current age, location and referral conditions on the host site.

Condition information with routes to a helpline, practical support and broader macular peer connection.

Explanation of causes plus routes to advice, local peer groups and help with central-vision tasks.

Condition information, advice routes, peer groups and practical help with central-vision tasks.

Condition explanation and practical, counseling and peer-support routes. Check current treatment information against the regulator and specialist.

Condition information, central-vision adaptations, advice and peer-support routes.

Advice, counseling and peer support for central-vision difficulties; not a PCV-specific treatment authority.

Broader central-vision support, counseling and peer connections. No dedicated POHS clinic or international POHS group is claimed.

Condition information plus advice, counseling and peer-support routes.

Broader support for persistent central sight loss, including peer groups and advice about daily tasks; not a dedicated light-injury clinic.

Condition-specific information, a helpline and an officially listed virtual Sorsby peer-support group, alongside broader macular support. Check current meeting arrangements with the charity; peer support is not medical advice. Historical vitamin A research on the information page is not a self-treatment recommendation.

Condition guide plus support for school, work, emotional adjustment and central sight loss; local service eligibility differs outside the UK.

Broader macular helpline, practical advice and local peer support for central visual difficulty. Not a VMT-only treatment service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom

Manchester Royal Eye Hospital leaflet

Concise patient explanation. Updated 2020 with a stated 2022 review date, so the document is not labeled newly revised.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

Mass General neurovascular CCF information

Hospital explanation of abnormal flow, angiography and multidisciplinary care. Undated/older leaflet; current personal care and access need direct clinical confirmation.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

MedlinePlus

Plain-language genetics and inheritance reference. The page was last updated in 2019; newer gene-specific cohorts below add detail, so its older risk estimates are not individual predictions.

More about this organization’s scope

Concise explanation of symptoms, investigations and treatment; urgent illness still requires direct medical care.

Condition-specific clinical background, testing and care context.

Accessible introduction. Some subtype and gene listings are older than the specialist reviews.

Accessible overview of silent disease, symptoms and the importance of blood-pressure management.

Accessible background with links to specialist references; not individual surveillance advice.

Accessible introduction to the classic syndrome; individual findings and broader spectrum classification still require assessment.

Condition-specific information to discuss with the treating team.

Accessible background; older genetic candidate statements require interpretation alongside newer phenotype/genetics evidence.

Accessible introduction to phenotype and genetic diversity, for discussion with the care team.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · United Kingdom

MHRA Yellow Card

Patients and professionals can choose to report suspected medicine/device problems. Reporting does not replace medical care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia

Migraine Australia

Australian migraine education, advocacy and support navigation. Useful for understanding local access and patient experiences; resources cover migraine broadly, not aura alone.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Canada

Migraine Canada

Education, support-group information, care navigation and practical Canadian disability and access resources. Social feeds share organizational updates and are not a clinical consultation.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia · International

Mito Foundation: CPEO

Condition-focused information and Australian care pathways. Local access and eligibility differ from other countries.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International · Multiple countries; each organization sets its own region and eligibility

Moebius Syndrome Foundation

Condition-specific education, adult/teen/family resources and verified community routes. External app/community registration is optional and subject to its own privacy terms; peer content is not medical advice.

More about this organization’s scope

Organization-owned directory for finding regional Moebius and facial-difference support. Listing is not proof of current local service capacity.

Explains minimum clinical criteria and multidisciplinary assessment rather than diagnosis by photographs.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

Moorfields Eye Hospital

Information on childhood vision, amblyopia and binocular assessment.

More about this organization’s scope

Describes alignment and eye-movement assessment; access to the clinical service depends on local pathways.

Specialist-hospital overview of symptoms and the diagnostic/treatment context.

Assessment of alignment, binocular function and childhood vision needs; not guaranteed specialist access for every region.

Hospital patient information; local care access is distinct from reading the public page.

Explains blocked glands and when a specialist procedure may be considered.

Patient overview with links to biopsy and treatment information; public reading is distinct from access to a specialist service.

Describes assessment of focusing, binocular vision and movements; local referral pathways apply.

Information on professional binocular-vision and eye-movement assessment; local referral requirements apply.

Information about measuring and managing binocular and eye-movement problems; local referral pathways apply.

Describes professional assessment of binocular vision and eye movements; local access pathways apply.

Information about childhood visual development and alignment assessment.

Clear postoperative warning symptoms and immediate assessment advice. Use your own treating service’s emergency pathway where available.

Explains the drainage pathway, common causes and eyelid contributors.

A short explanation of the affected tissue, irritation and recurrence.

Explains pump-cell failure, symptoms and the interaction with cataract surgery.

Condition-specific patient explanation of eye involvement, treatment and recurrence; use local urgent-care routes outside its service area.

Overview with linked adult and pediatric CXL aftercare; the instructions for your own procedure take priority.

Plain-language explanation, lid-care demonstration and clear reasons to seek reassessment.

Explains urgent care, treatment intensity and follow-up.

Detailed disease information with counseling and liaison routes for hospital patients; access to services is local.

Specific information on an irregular-cornea cause of ghosting and its assessment; not every ghost image is keratoconus.

Information about assessment of double vision and alignment. Access to treatment depends on referral and service arrangements.

Practical explanation and instructions to seek review for worsening symptoms. Local emergency access differs elsewhere.

Describes assessment and management of eye coordination; clinical access follows local referral pathways.

Explains assessment of eye coordination and task-related complaints; it is not an international remote diagnosis service.

Describes orthoptic evaluation of alignment and visual tasks. Access to this hospital’s service requires its referral pathway.

Explains a specialist emergency service that assesses hemorrhage and retinal problems. The clinic is referral-only, not a walk-in or global emergency contact.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

MS International Federation member network

Find member MS organizations and routes to support closer to the person’s country and language.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

MS Society: eyes, sight and community

Relevant when the eye-movement problem is associated with multiple sclerosis. Information and organization-linked peer forum; forum experiences are not medical advice. An eye-movement finding alone does not diagnose MS.

More about this organization’s scope

Relevant when the eye-movement problem is associated with multiple sclerosis. Information and organization-linked peer forum; forum experiences are not medical advice and INO does not by itself diagnose MS.

Symptom explanations, practical sight support and helpline/community routes. Local service availability needs checking.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

MS Trust: visual problems

Clear pathways to optic-neuritis, diplopia and nystagmus information, with broader MS information services. Officially linked MS community; Facebook login may be needed. Peer experiences do not replace individual clinical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

MSF — xerophthalmia clinical guidance

Explains emergency corneal manifestations and supervised clinical management. Its clinician dosing tables should not be used to self-treat.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Muscular Dystrophy Association: OPMD care

Practical explanation and related care-center resources; older wording about surgery resolving ptosis needs interpretation in a progressive disorder.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United Kingdom

Muscular Dystrophy UK peer support

Broader muscle-condition support, including adult and family routes. Confirm current OPMD-specific availability rather than relying on an old meeting notice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Myasthenia Gravis Foundation of America

Official support-group directory for people affected by MG and families, plus links to educational resources. Peer experience is not diagnosis or treatment advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

myaware

Ocular-myasthenia education and support. Organization-managed peer groups have membership/diagnosis or family/carer eligibility; they are not medical advice or emergency services.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · International

NASA — eclipse safety

Explains safe eclipse observation, indirect viewing and the separate requirements for optical equipment; not a medical assessment service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

National Alliance of Sickle Cell Centers — adult recommendations

Includes retinal screening within coordinated adult care. Professional standards support questions for the team rather than a personalized eye schedule.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

National Ataxia Foundation support groups

Relevant when nystagmus is part of an established ataxia disorder. Official group and meeting directory, including virtual options; peer support is not medical advice or a diagnostic service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

National Cancer Institute

Patient-oriented childhood treatment reference; adult and subtype-specific decisions need the specialist team.

More about this organization’s scope

Relevant only when neuroblastoma is suspected or diagnosed. Includes the tumour-associated OMAS trial; it is not a general explanation for all ocular flutter.

Detailed family treatment overview for discussion with the oncology team.

Plain-language anatomy, staging and treatment explanations to prepare for specialist discussion.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · United States · International

National Eye Institute

Plain-language explanation of drifting shadows, dilated examination and emergency warning signs. The institute does not provide individual diagnosis or a physician-referral service.

PVDGlaucomaCataractEye floatersColor visionAmblyopiaAnisometropia: different prescriptions in the two eyesAnophthalmia and microphthalmiaEye involvement in Behçet’s diseaseBietti crystalline dystrophyBlepharitis and meibomian gland dysfunctionBlepharospasmCarotid artery dissection and visual symptomsCarotid–cavernous fistulaCavernous sinus syndromeCavernous sinus thrombosisCerebral venous sinus thrombosis and visionCerebral/cortical visual impairment (CVI)ColobomaConjunctivitis: infectious, allergic and other red-eye causesConvergence insufficiencyCosteff syndrome (OPA3-related disease)Craniopharyngioma and visual functionDeafness-dystonia-optic neuronopathy (DDON)Dominant optic atrophy (DOA)Dry eye diseaseEpiretinal membrane (macular pucker)Epithelial and stromal corneal dystrophiesGiant cell arteritis and arteritic visual lossGranulomatosis with polyangiitis: eye and orbital involvementHerpes zoster ophthalmicus (ocular shingles)Hydrocephalus-related visual problemsIdiopathic intracranial hypertension (IIH)IgG4-related ophthalmic diseaseIntracranial aneurysms and visual problemsIridocorneal endothelial (ICE) syndromeLattice degenerationLeber hereditary optic neuropathy (LHON)Macular edemaMedication-related optic neuropathyMethanol poisoning and visual lossMOG antibody-associated disease (MOGAD)Monocular double vision and ghost imagesMultiple sclerosis-related visual problemsNon-arteritic anterior ischemic optic neuropathy (NAION)Neoplastic infiltration of the optic nerveNeuromyelitis optica spectrum disorder (NMOSD)NeuroretinitisNutritional optic neuropathyHerpes simplex eye disease (HSV keratitis)Ocular ischemic syndromeOcular syphilisOptic disc drusenOptic nerve hypoplasia (ONH)Optic nerve sheath meningioma (ONSM)Optic neuritisOptic pathway glioma (OPG)Optic perineuritisOrbital apex syndromeOrbital inflammation and idiopathic orbital inflammatory diseasePapilledema: optic-disc swelling from raised pressureParaneoplastic optic neuropathyPituitary apoplexyPituitary tumors and visionPosterior ischemic optic neuropathyPresumed ocular histoplasmosis syndromeRadiation-induced optic neuropathyRecurrent corneal erosionRefractive errors: myopia, hyperopia, astigmatism and presbyopiaRenal coloboma syndrome and PAX2-related disorderRetinal artery occlusion: central and branchRetinal tears and retinal detachmentRetinal vasculitisRetinoblastomaRetinopathy of prematurity (ROP)Sarcoidosis and neuro-ophthalmic involvementSepto-optic dysplasia (SOD)Stargardt diseaseSuperior orbital fissure syndromeThyroid eye diseaseTolosa–Hunt syndromeTransient vision lossTraumatic optic neuropathyUveitis and related ocular inflammationWhite pupil (leukocoria): a sign that needs assessmentWolfram syndrome and WFS1-related visual impairment
More about this organization’s scope

Patient information and publicly funded vision-research education. This is an educational resource, not a personal diagnosis or a patient support group.

Condition-specific information to discuss with the treating team.

Background on focusing errors and professional correction.

Accessible overview explaining that diagnosis depends on the clinical pattern rather than a single test.

Condition-specific clinical background, testing and care context.

Accessible explanation of causes, examination and treatment categories.

Accessible explanation of symptoms, diagnosis and care options.

Information on vision rehabilitation, accessible devices and task adaptations; ask locally about referral and service availability.

Plain-language clinical introduction and links to research; the NEI does not diagnose individual cases or provide physician referrals.

Accessible distinctions among causes and guidance on seeking assessment.

Plain-language symptoms, examination and links to research; NEI does not provide individual diagnosis or prescriptions.

Accessible overview of symptoms, assessment and broad treatment categories; not an individual care service.

Overview of symptoms, examination, OCT and why many mild cases are monitored.

Accessible explanation of corneal layers and broad disease categories.

Broader help with assistive technology, daily activities, employment and emotional support when lasting visual difficulty affects function. Not a zoster-specific treatment program.

Contains an accessible ICE section explaining iris changes, corneal swelling and glaucoma.

Explains urgent warning symptoms and the difference between a retinal break and detachment.

Accessible overview of testing and treatment categories, with links to the underlying conditions.

Explains focusing errors, examination and correction; does not provide individual prescriptions.

Explains the original prevention trial; historical 1998 evidence, not a current individualized dosing plan.

Explains vision rehabilitation, reading and device adaptations for persistent task difficulties. Local services require a separate referral or access check.

Patient explanation of central symptoms, testing and low-vision support. Read alongside the CDC distinction from active infection.

Useful when a dystrophy is suspected or diagnosed, rather than assuming every erosion is inherited.

Accessible focusing-error types, examination and treatment information.

Accessible warning symptoms, types, testing and treatment explanation.

Plain-language intraocular-inflammation guide explaining symptoms, assessment and treatment monitoring. It is broader than retinal vasculitis and does not provide a personal diagnosis or physician referral.

Practical description of assistive technology, daily living and mobility support, with directories for locating services. Eligibility and coverage depend on the local provider; the page does not itself deliver care.

Accessible disease explanation, low-vision links and information about NEI evaluation and research; US study access is eligibility-dependent.

Plain-language overview of anatomical forms, possible causes, assessment and treatment.

One important cause of leukocoria; the symptom is not itself a cancer diagnosis.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International · United Kingdom

National Institute for Health and Care Excellence

Contains an oscillopsia section for adults with established MS. Off-label prescribing and specialist review are discussed; it is not a self-prescribing resource.

More about this organization’s scope

Evidence-based B12 diagnosis and management guidance; not a universal guide to all micronutrient optic neuropathies.

Official withdrawal notice helps explain why older treatment pages may list a medicine no longer marketed in the UK.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

National Keratoconus Foundation

Patient guides, webinars, an information warmline, specialist-referral information and an insurance toolkit. Referral listings or patient awards are not proof of comparative treatment quality.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

National Kidney Foundation

Kidney health information, practical support and local events; broader than PAX2 disease. Local programs and clinical access vary.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International · United States

NCBI Bookshelf and clinical references

Detailed phenotype, inheritance and assessment reference for a genetics conversation.

More about this organization’s scope

Detailed clinical and inheritance context, including syndromic distinctions.

Updated genetic and surveillance context for discussion with eye and genetics teams.

Condition-specific clinical background, testing and care context.

Detailed phenotype, genetic counseling and management discussion for use with a specialist.

Detailed molecular, clinical and family-counseling reference; updated in 2020, so ask specialists about subsequent developments.

Detailed genetic and management information, last updated in 2019. Use with current specialist advice and newer deletion literature.

Detailed isolated-versus-syndromic and counseling information to discuss with the care team.

Current 2026 genetic and management synthesis to discuss with the team.

Detailed KSS-spectrum, molecular and multidisciplinary-care information for specialist discussion.

Detailed genotype, diagnostic and counseling resource. It explicitly identifies areas where surveillance recommendations reflect expert experience rather than trial evidence.

Detailed genetics and clinical context; treatment sections should be read with the newer consensus.

Relevant when Joubert syndrome is being investigated or diagnosed; it is not proof that OMA implies that syndrome.

Detailed clinical, genetic and care information for discussion with clinicians.

Clinical reference to support questions for the treating team.

Current 2026 differential and management discussion; technical educational resource, not a home treatment protocol.

Updated 2025 molecular and multisystem information for discussion with genetics, kidney and eye teams.

Molecular and family-risk context; not an individual genetic interpretation.

Detailed, updated clinical genetics reference and resource links; useful for preparing questions with the inherited-retinal and hearing team.

Detailed genetic and clinical explanation for a selected possible cause, not a diagnosis for everyone with downbeat nystagmus.

Clinical genetics, differential diagnosis and family support reference. Its 2020 trial-recruitment statements are historical and should not be used as current recruitment information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Nerve Tumours UK

NF information, specialist nurse and helpline routes, school and workplace resources. Relevant when an OPG is associated with NF1; service coverage varies.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

Newcastle Hospitals Fresnel prism information

Practical information for people prescribed temporary prism, rather than a guide to selecting a prism independently.

More about this organization’s scope

Practical information after temporary prism is prescribed.

Practical leaflet for professionally prescribed temporary prism.

Practical support after prescription of temporary prism, not a self-prescription tool.

Practical information for people prescribed temporary prisms. Suitability and driving advice require the treating team.

Practical information for people prescribed a temporary prism; not a way to choose prism strength independently.

Practical information for a prescribed temporary prism, with suitability determined by an orthoptist.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Singapore; public education and local health system

NHG Health: Microvascular cranial nerve palsy

Explains the three nerves, symptoms and practical temporary approaches; local care access differs from online information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · England/NHS eligibility rules; other regions differ · International

NHS

Accessible information about eye problems, protection and support.

More about this organization’s scope

Official cost-help information for eligible sight tests and correction; not universal free care.

Helps distinguish symptom patterns and identifies situations requiring urgent assessment.

Practical patient information and clear distinctions between routine persistent symptoms and changes needing urgent advice.

Patient information, precautions and signs that warrant urgent advice.

Condition-specific information to discuss with the treating team.

Patient explanation, hygiene advice and return precautions for a red eye.

Information about symptom distinctions and urgent warning signs.

Public symptom and urgent-care information.

Practical advice on when routine or urgent assessment is appropriate.

Helps distinguish routine review from warning symptoms. It is not a diagnostic photograph comparison.

Immediate warning signs, chemical rinsing and precautions for penetrating or high-speed injury.

Explains urgent versus emergency symptoms and routes into assessment; local urgent-care numbers differ outside the UK.

Accessible overview of symptoms, investigation and treatment. Emergency numbers and referral routes should be adapted to the reader’s country.

General recovery and warning-sign information. A complex lens repair needs its own instructions from the treating service.

Detailed explanation of recovery, gas restrictions and symptoms requiring urgent postoperative contact.

Public explanation of one-eye versus two-eye symptoms and urgent warning signs.

Clear symptom, urgent-care and treatment explanation without requiring an account.

Explains testing, confidential partner support and links to sexual-health clinics. Routine clinic finding is not a substitute for urgent ophthalmic care.

Accessible multidisciplinary care explanation, including eye/orthoptic, rehabilitation and swallowing services.

Everyday recognition strategies and routes for discussing face-recognition difficulty.

Official eligibility information for sight tests and vouchers. Not a universal offer of free spectacles.

General recovery and retinal warning signs. Instructions for a complicated operation or vitrectomy should come from the treating team.

Symptoms and treatment overview with UK-specific urgent-contact guidance; use the equivalent local eye-care pathway elsewhere.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

NHS 111 Wales — Cavernous sinus thrombosis

Patient information on symptoms and hospital care. Broad historical complication percentages are not individualized predictions.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

NIH CMV clinical guidance

Detailed reference specifically for adults and adolescents with HIV; not a self-treatment protocol.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

NIH Office of Dietary Supplements — vitamin A

Forms, food sources, deficiency-risk groups, medicine interactions and toxicity information for discussion with a clinician or dietitian.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

NOAH — Low Vision Aids

Task-specific low-vision aids and practical strategies, with broader family support navigation.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Professional organization · North America · International · Country/state search; local access varies · United States · Directory includes country and state search; appointments and access vary

North American Neuro-Ophthalmology Society

Professional directory that can help identify a neuro-ophthalmologist to assess persistent visual symptoms and other possible explanations. Not every listed clinician treats HPPD; check experience, referral requirements and coverage. This is care navigation, not an HPPD support charity.

HPPDHemianopiaPalinopsiaAdie tonic pupilAnisocoria: unequal pupil sizesCarotid–cavernous fistulaCavernous sinus syndromeCavernous sinus thrombosisCerebral venous sinus thrombosis and visionCosteff syndrome (OPA3-related disease)Dominant optic atrophy (DOA)Giant cell arteritis and arteritic visual lossGranulomatosis with polyangiitis: eye and orbital involvementHomonymous quadrantanopiaHorner syndromeHydrocephalus-related visual problemsIdiopathic intracranial hypertension (IIH)IgG4-related ophthalmic diseaseIntracranial aneurysms and visual problemsLeber hereditary optic neuropathy (LHON)Microvascular ocular motor cranial nerve palsyMOG antibody-associated disease (MOGAD)Non-arteritic anterior ischemic optic neuropathy (NAION)Neoplastic infiltration of the optic nerveNeuroretinitisNutritional optic neuropathyOcular ischemic syndromeOcular myasthenia gravisOptic disc drusenOptic nerve sheath meningioma (ONSM)Optic neuritisOptic perineuritisOrbital apex syndromeOrbital inflammation and idiopathic orbital inflammatory diseasePapilledema: optic-disc swelling from raised pressureParaneoplastic optic neuropathyPituitary apoplexyPituitary tumors and visionPosterior ischemic optic neuropathyPtosis: drooping upper eyelidsRadiation-induced optic neuropathyRenal coloboma syndrome and PAX2-related disorderRetinal artery occlusion: central and branchSarcoidosis and neuro-ophthalmic involvementSuperior orbital fissure syndromeThird cranial nerve palsyThyroid eye diseaseTolosa–Hunt syndromeTransient vision lossTraumatic optic neuropathy
More about this organization’s scope

Patient and clinician information about same-side field loss, causes, function and assessment. This is not a peer-support community.

Find-a-neuro-ophthalmologist directory for symptoms involving vision and the nervous system. A professional directory is not a charity, emergency service or guarantee of appointment availability; ask about referral requirements and coverage.

Accessible explanation of pupil differences and associated warning signs.

Accessible pupil-difference explanation and downloadable patient information.

Search neuro-ophthalmology professionals. Listing does not guarantee an appointment, insurance coverage or emergency access.

Explains the same-side-in-both-eyes principle; broader half-field context is distinguished from quadrant loss.

Accessible explanation of pupil signs and why associated symptoms matter.

Patient explanation of the diagnostic process, eye findings and follow-up; printable material available.

Patient explanation and follow-up questions; its reassuring distinction from brain stroke should be read alongside newer vascular-risk research.

Explains diagnosis, visual changes and treatment uncertainty, with a linked medication-specific information update.

Concise explanation of neuromuscular weakness and symptoms for discussion with a clinical team.

Patient explanation, printable material and links to pediatric and ophthalmology information.

Patient explanations, printable material and links to further clinical information. It does not provide an individual diagnosis. This is a NANOS-listed external peer group; login may be required, and its activity and moderation were not independently verified.

Find neuro-ophthalmology professionals for optic-nerve assessment. A listing does not promise availability, insurance coverage or an urgent appointment.

Patient explanation of visual pathway compression and multidisciplinary care; the dated brochure is not individualized advice.

Useful when droop accompanies a pupil difference; it does not establish the diagnosis from appearance.

Explains a specific possible cause and the role of neuro-ophthalmic assessment; it is not a diagnosis for every new palsy.

Explains why prompt assessment matters and which details of an episode help the clinician.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

nystagmusnetwork.org — linked resources

Information, research involvement and adult support for acquired or congenital nystagmus. Nystagmus and oscillopsia are related but are not interchangeable diagnoses.

More about this organization’s scope

Information, education support and separate online connection routes for acquired nystagmus, adults with congenital nystagmus and families. Peer experience is not medical advice.

Acquired-nystagmus information and online connection may be relevant to persistent visual instability; this is broader support, not a verified SOM-specific group. Peer experience is not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Ocular Immunology and Uveitis Foundation

Education, support meetings and specialist listings for ocular inflammatory disease. Peer groups are non-medical; infectious disease requires organism-specific care rather than adopting another member’s immune treatment.

More about this organization’s scope

Relevant when inflammation is the cause: educational material and peer meetings, not a diagnosis or replacement for treatment.

Free ocular-inflammatory-disease self-help groups, including adult, parent and teen routes, plus virtual meetings. Broader than neuroretinitis; support is not diagnosis or personalized drug advice. Private group content was not inspected.

Broader ocular-inflammatory-disease self-help support, including patient and family routes. This is not an orbital-diagnosis service; no private group content or individual treatment advice was accessed.

Official support hub lists virtual meetings and adult, parent and teen Facebook routes. Group admission is moderated; these are coping/connection resources, not personal medical treatment. The linked hub also contains older Q&A, so current clinical decisions belong with the treating team.

Official support directory explicitly includes scleritis. Peer discussion is not medical advice; private social groups require their own admission. Older clinical Q&A on the same site is not a current prescribing guide.

Adult, parent and teen self-help connections, education and virtual meetings. Peer discussion is non-medical; archived question-and-answer material is not an individualized treatment plan.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Ocular Melanoma Foundation — patient resources

Disease-specific education and community links. Travel, prosthetic and free-eye-exam assistance are listed as USA-only and require the organization’s eligibility process.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

OMSLife Foundation

OMAS education, family conferences, research information and organization-linked peer connection. Support is for patients and caregivers; it does not establish a diagnosis or replace specialist care.

More about this organization’s scope

Detailed clinical consensus for discussion with a specialist, including long-term follow-up; not a home treatment protocol.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

OPMD Association

Condition-specific resources, clinician/care-center lists, caregiver information and organization-linked language/regional groups. Listings are not endorsements; peer content is not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

Orbis International

Trains eye-care teams and strengthens eye-health systems, including cataract services. Program availability depends on the region and partner.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

Orphanet — MAC spectrum

Rare-disease clinical context and associated-condition discussion.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Pediatric Cortical Visual Impairment Society

CVI family information, education, advocacy and research resources. Some professional webinars require member login.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

Pediatric Endocrine Society: ONH and hypopituitarism

Explains possible hormone involvement and specialist roles, with Spanish printable material. It discusses the wider ONH/hypopituitarism spectrum.

More about this organization’s scope

Explains ONH/hypopituitarism and endocrine follow-up; a Spanish PDF is linked. Terminology emphasizes the endocrine-associated spectrum.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

PEM Friends: ocular mucous membrane pemphigoid

Disease-specific explanation, patient experience and connections for pemphigus and pemphigoid. Its current meeting page describes general and disease-focused calls; participation arrangements can change.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Perception Restoration Foundation

Dedicated HPPD research funding, information and a specialist directory. Volunteer capacity is limited and the organization says replies may be slow; it cannot guarantee help with an individual case. Check clinician credentials and the primary evidence behind treatment claims.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Access & practical help · United States · International

Perkins — CVI Now

Family and educator learning guides, accessible learning resources, advocacy information and caregiver support routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · United Kingdom · Australia · New Zealand

Pernicious Anaemia Society

Relevant when B12 deficiency is caused by pernicious anaemia, not every nutritional optic neuropathy. Public information and member support groups; contact details and invitations require membership login. Peer support is not prescribing advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

PMRGCAuk support

Volunteer support, local and online groups and an organization-linked HealthUnlocked forum. Peer services do not give medical advice. Volunteers and peers provide support rather than medical advice; check individual meeting arrangements.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

Poison Control first-aid and expert-help information

Public information explains immediate expert help and emergency signs. Do not delay emergency care to use an online tool or finish this guide.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

Practical Neurology — PRES diagnosis and management

Specialist clinical review; reading access may vary.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Prevent Blindness

Patient education about floaters and retinal emergencies, care-access information and Living Well with Low Vision resources. Its social channels provide public education rather than individual diagnosis.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

PSPA

PSP/CBD local and online connection plus care-partner routes. Current meeting eligibility and practical support vary.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

PubMed — research abstracts

Original multidisciplinary clinical study to support questions about assessment.

More about this organization’s scope

Topic-specific research with the study-design limits described in this guide.

Multidisciplinary assessment examples across related developmental eye conditions.

Original research or specialist synthesis with limitations summarized below.

Specialist visual phenomenology and electrophysiologic context.

Original rare clinical example, not a diagnostic image or treatment prescription.

Current specialist discussion of differential diagnosis and limited treatment evidence.

Explains prevention evidence and its limits; not an instruction to exchange an existing implant.

Read the systematic-review abstract for the limits of current noninfectious retinal-vasculitis treatment evidence. It is not a trial recruitment portal or advice to change medicines.

Specialist overview of the diagnostic triad and ophthalmic role.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International · Japan · United Kingdom

PubMed Central — open research articles

Accessible research background; review-era trial activity must be checked with the trial team.

More about this organization’s scope

Topic-specific research with the study-design limits described in this guide.

Detailed phenomenology and case-report evidence limitations.

Detailed professional guidance and evidence references to discuss with a clinician.

Detailed evidence discussion across the major ocular complications and low-vision care.

Open clinical examples with case-series limitations; not a home diagnostic guide.

Original research or specialist synthesis with limitations summarized below.

Detailed assessment framework and referral discussion to bring to a professional conversation, rather than a home diagnostic checklist.

Review of the limited trial evidence for acute internal hordeolum; not a treatment helpline.

Detailed visual and ocular-motor associations and limitations.

Clinical spectrum, staging and treatment limitations.

Detailed specialist discussion of structures, complications and evidence gaps.

Evidence and uncertainties in post-stroke assessment and rehabilitation.

Condition-specific clinical background, testing and care context.

Respectful specialist explanation of diagnosis and management principles.

Technical definitions and examination context, not a self-diagnostic checklist.

Original clinical research, with referral-cohort limits.

Detailed investigation and management framework from pediatric specialist services; more technical than a patient leaflet.

Specific review of visual processing and functional consequences.

Diagnostic and management framework with medication-safety and evidence limitations.

Current specialist definitions and explicit treatment-evidence limitations.

Detailed clinical review for discussing tests and treatment categories with a corneal specialist; includes clinical photographs, which may be uncomfortable to view.

Detailed genetic/acquired retinal signaling context rather than a home night-vision test.

Clinical discussion of sheath inflammation and differential diagnosis; not a prescription or proof that every case follows the same course.

Open differential and management framework with condition-specific limitations.

Detailed clinical assessment and treatment-goal discussion.

Detailed clinical definition and differential context, not a self-diagnostic checklist.

Detailed specialist review of clinical distinctions and mechanisms.

Reference for clinicians; not a home-treatment algorithm and not a substitute for emergency services.

Original targeted convergence trial; does not establish universal vision-therapy benefit.

Open specialist discussion of diagnosis, care and evidence limitations.

Clinical background on presentations, causes and limitations.

Explains how front- and back-of-eye teams assess location, material and complications. Technical procedural content is for clinicians, not a home-care protocol.

Longer-term clinical trial follow-up with visual and developmental outcome limitations.

Professional evidence framework for esotropia and exotropia.

Specialist consensus on diagnostic context and overlap with other vestibular disorders; it does not provide a personal diagnosis or treatment plan.

Original experimental case, not a home task or general treatment recommendation.

Current multidisciplinary assessment and intervention framework with evidence limitations.

Detailed comparative-evidence limits, not a home treatment protocol.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Rare Dementia Support

PCA-specific support information, meetings and connection routes.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States · International

Rare Genomics Institute: RareShare information

Official route to a broader rare-disease peer network; a specific active CFEOM community was not verified. External registration is optional and subject to that service’s privacy terms; peer content is not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Raymond A. Wood Foundation

Craniopharyngioma-specific education, physician discovery, research information and free monthly support groups requiring registration. Check upcoming dates; peer meetings do not replace medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

RCPCH — Parent and carer screening information

Screening explanation, family preparation and continuing follow-up information.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

Retina International

A route to national retinal-disease groups, patient education, advocacy and research participation information. Member services vary by country; this is a global directory rather than a claim that every local group has been reviewed.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Africa

Retina South Africa

Patient advocacy and counselling, retinal-research support and assistance navigating genetic testing and referrals. Also listed by Retina International as a national member organization.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

retinauk.org.uk — linked resources

Research funding, a helpline, genetics education and local/online support. Its Information & Support Facebook group is a non-medical peer community; advice shared there is not clinical evidence.

More about this organization’s scope

Broader inherited-retinal peer support, webinars and an organization-verified community directory. Not an achromatopsia-only group; check each service’s availability and external privacy terms. Peer experience is not medical advice.

Inherited retinal condition information, helpline routes, wellbeing resources and local/online peer support.

Inherited-retinal-condition information, helpline and peer-support routes, including family-oriented practical support.

Inherited-retinal support and peer connection when an inherited cause has been established.

Official directory for inherited-retinal-disease information, webinars and non-medical peer connection; not a Sorsby-only group.

Organization-linked non-medical peer group, webinars and inherited-retinal information; no need to share a genetic report publicly.

Official inherited-retinal information, webinars and non-medical peer group. This is a broader community, not an XLRS-specific prescribing service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

RNIB

Accessible condition information, practical and emotional support, assistive technology and routes to community connection. Broader sight-loss support rather than a condition-specific medical service.

PVDMacular degenerationGlaucomaCataractCharles BonnetHemianopiaEye floatersWavy visionAcquired pendular nystagmusAcquired vitelliform macular lesionsAkinetopsia: visual motion-processing difficultyAnton syndrome: unawareness of cerebral visual lossBálint syndromeEye involvement in Behçet’s diseaseBinocular double visionBirdshot chorioretinopathyBrown syndromeCarotid–cavernous fistulaCavernous sinus syndromeCavernous sinus thrombosisCentral serous chorioretinopathyCerebral achromatopsia: acquired color-processing lossChoroidal detachment: fluid or blood beneath the choroidCongenital fibrosis of the extraocular musclesConjunctival tumors and surface-eye growthsAcquired cerebral visual loss and cortical blindnessDecompensated strabismus and phoriaDiabetic retinopathy and diabetic macular edemaDivergence-insufficiency-type esotropiaDorsal midbrain syndrome (Parinaud syndrome)Double vision: finding the right explanationDuane retraction syndromeEndophthalmitisEpiretinal membrane (macular pucker)Eye trauma and chemical injuryFourth cranial nerve palsyGaze-evoked and rebound nystagmusHomonymous quadrantanopiaHydroxychloroquine retinal toxicityHypertensive retinopathyInfantile nystagmusInternuclear ophthalmoplegiaDislocated intraocular lens implantJoubert syndrome: vision and eye movementsMacular holeMedication-related optic neuropathyMethanol poisoning and visual lossMicrovascular ocular motor cranial nerve palsyMonocular double vision and ghost imagesMyopic macular degenerationNon-arteritic anterior ischemic optic neuropathy (NAION)Neurotrophic keratitisNystagmus: understanding different eye-movement patternsOcular motor apraxia and saccade initiation difficultyOcular mucous membrane pemphigoidOcular neuromyotoniaOcular syphilisOne-and-a-half syndromeOptic perineuritisOrbital apex syndromeOrbital cellulitisPapilledema: optic-disc swelling from raised pressurePhotophobia and light sensitivityPosterior capsule opacification after cataract surgeryPosterior ischemic optic neuropathyProsopagnosia: face-recognition difficultyPterygiumPtosis: drooping upper eyelidsPure alexia: acquired reading impairmentRecurrent corneal erosionRetained lens fragments after cataract surgeryRetinal tears and retinal detachmentRetinal vein occlusionSagging eye syndromeScleritisSimultanagnosiaSixth cranial nerve palsySkew deviation and ocular tilt reactionEye complications of Stevens–Johnson syndrome and TENSuperior oblique myokymiaThird cranial nerve palsyTolosa–Hunt syndromeTopographical disorientation and navigation difficultyTraumatic optic neuropathyUveitis and related ocular inflammationDownbeat and upbeat nystagmusVisual neglect and spatial inattentionVisual object agnosiaVitreous hemorrhage
More about this organization’s scope

Practical and emotional support, accessible technology, employment guidance and regional Connect communities. Peer discussions complement clinical care and are not medical advice.

Accessible CBS information and downloadable formats, with practical and emotional sight-loss support. General sight-loss support remains useful even when symptoms do not fit a single cause.

Broader peer connection for people affected by persistent sight difficulties and their families; not a condition-specific group or medical advice. Check each service’s geographic eligibility.

Broader sight-loss information and practical support routes when central-vision difficulties affect daily tasks; not an AVL-specific treatment service.

Information on stroke-related visual problems and support routes, relevant when stroke is the underlying cause.

Vision and support information relevant when stroke is the cause.

Practical sight-loss support and accessible-technology routes for persistent visual difficulties; not a Behçet treatment clinic.

Broader accessible-technology and daily-living support when contrast or visual-field problems affect tasks.

Practical support for persistent visual disability. This is a broader sight-loss route, not a fistula-specific treatment or emergency service.

Practical and emotional support for residual visual difficulty. Broader than this anatomical syndrome; a confirmed cause may lead to a more specific support organization.

Practical and emotional support for persisting visual disability after acute treatment. Not an infection-specific group or emergency service.

Task-based sight-loss and accessible-technology support when central vision remains difficult.

Practical and emotional sight-loss support if visual limitations persist; not specific treatment for a choroidal detachment.

Broader practical and emotional support for persistent vision or daily-living difficulties after diagnosis or treatment.

Explanations of visual effects, rehabilitation and support relevant to stroke.

Accessible information and routes to practical sight-loss support, including help adapting daily tasks.

Practical support if vision remains affected after infection, including accessible technology and community connections. This is not an emergency or infection-treatment service.

Condition-specific factsheet and sight-loss advice, including practical support when reading or detail vision is affected.

Accessible technology, rehabilitation information and community routes for persistent visual loss after an injury. This is not an emergency assessment service.

Field and other stroke-vision support information.

Practical help if vision is affected. It does not assess toxicity or make medication decisions.

Practical accessibility and community support if retinal or optic-nerve injury leaves visual difficulty. It is not a blood-pressure or emergency treatment service.

Access technology, practical support and non-medical peer connections for persistent visual difficulty.

Sight-loss technology, emotional support and community connection. Broader than a particular medicine reaction; peer support is not prescribing advice.

Practical and emotional support for lasting sight loss, including technology and community connection. This is follow-up support, not an acute poison service.

Technology, work and daily-living information plus non-medical peer connections.

Practical and emotional support, accessible technology and advice about living with sight loss. Check eligibility for specific UK services. Broader sight-loss community routes, not NAION-specific medical advice.

Practical sight-loss support and routes to community connection. Broader support for residual disability, not a sexual-health clinic or infection-specific treatment service.

Broader sight-loss rehabilitation and emotional/community support; no OPN-specific medical group is implied.

Sight-loss support for persistent functional needs. This is broader than orbital apex syndrome and cannot provide emergency orbital assessment.

Relevant only if sight difficulty persists: accessible technology, practical support and non-medical peer connections. No dedicated orbital-cellulitis charity is claimed.

Practical access, technology and emotional-support routes for persistent visual impairment, regardless of the pressure cause. Broader sight-loss support, not an emergency service or papilledema-specific community.

Practical information about light comfort and visual access. Its official moderated community directory is broader sight-loss support, not a photophobia-specific group.

Accessible PCO information and broader UK sight-difficulty peer routes for persistent functional needs. Laser risks should be discussed with the treating team; peer experiences are not individual predictions.

Broader vision support, accessible technology and community connections; no PION-specific charity or active dedicated group was verified.

Practical sight-loss support and non-medical peer groups for people with persistent difficulties or recovery concerns.

Access technology, work and daily-living support for ongoing sight difficulties.

Broader practical and emotional support for persistent visual disability. Not a THS-specific group or emergency service.

Practical and emotional support for sight loss, accessible technology and broader community connections. Not a dedicated traumatic optic neuropathy group.

Accessible explanation of uveitis, complications and support for sight-related tasks.

Explains field loss, neglect and practical support distinctions.

Practical sight-loss advice and non-medical community connections during persistent impairment or recovery. This does not replace urgent retinal assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United Kingdom · International

RNIB and Royal College of Ophthalmologists — understanding retinal detachment

Detailed recovery, gas safety, daily-living and support information. The PDF is a 2023 publication hosted in a 2026 path.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Australia

Royal Children’s Hospital — Referral guidance

Explains why possible leukocoria needs urgent ophthalmic referral.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom

Royal College of Ophthalmologists UK monitoring guidance

Explains local monitoring responsibilities and differences from the US baseline recommendation. Ask your service about current implementation.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

SarcoidosisUK

Nurse helpline, condition-specific information and public routes to support groups and online forums. These are not emergency eye assessment services.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · Europe · International · United Kingdom

sense.org.uk — linked resources

Multisensory and complex-disability support, communication information and family or carer services. Contact the organization for eligibility and local availability.

More about this organization’s scope

Information on diagnosis, communication, mobility, childhood and living with Usher. Its former dedicated Usher service transferred to Deafblind UK, so current referral arrangements should be checked.

Support for complex and multisensory disabilities, accessible communication, education and family or carer needs. Check eligibility and local service coverage.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Shingles Support Society

A subgroup of registered charity Herpes Viruses Association offering shingles and postherpetic-pain information, volunteer support and a paid information-pack connection route. It is not an ophthalmic emergency service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States

Sickle Cell Disease Association of America — member finder

Helps affected people and caregivers find local community support; available services differ by organization.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

Sickle Cell Society — support groups and local services

Lists independent peer groups and NHS services by area. Individual groups have their own eligibility and activity; inclusion is not medical endorsement.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Siegel Rare Neuroimmune Association

Disease education, family programs, support routes, professional network and research-participation information.

More about this organization’s scope

Disease information, support and professional-network routes, mental-health resources and research-participation information.

Optic-neuritis education, current educational events, support-group routes and a resource library. Peer programs support connection and do not replace medical advice. Peer Connect supports adults and parents/guardians; volunteers do not provide medical or emergency advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Africa · Asia · International

sightsavers.org — linked resources

Supports cataract operations, health-system capacity and disability inclusion with local partners. It is not a worldwide individual surgical booking service.

More about this organization’s scope

Details current work on river blindness, other neglected infections and disability inclusion. Useful for understanding local partner roles, not self-prescribing.

Supports trachoma elimination, eye-care capacity and disability inclusion through local partners. Not a worldwide individual appointment or emergency service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

Singapore National Eye Centre — Retina Centre

A real medical-retina service explicitly treating PCV, with imaging and rehabilitation pathways and visit guides in four languages. Referral, fees and eligibility require local confirmation.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · Canada · International

Sjögren’s Foundation support networks

Relevant when Sjögren’s is diagnosed or being evaluated; dry eye alone does not establish this autoimmune disease. Volunteer groups support patients and families without replacing assessment.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

SJS Awareness UK

Survivor and family support, educational material and research connections. Public support information is accessible; some member services require registration. Peer support is not emergency care or individual prescribing.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · United States · International

Stanford Medicine

Condition-specific research and education links; this page is not a promise of study enrollment or clinical access.

More about this organization’s scope

Condition-specific information to discuss with the treating team.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International · United States

Stanford Neuro-Ophthalmology

Specialist definitions to help name the difficulty; not a home test or personal assessment.

More about this organization’s scope

Definitions distinguishing size/distance distortions, afterimages, hallucinations and other phenomena.

Definitions including Anton syndrome and related visual-perception phenomena.

Anatomical and clinical teaching about vascular lesions. Images and examples are educational, not a diagnostic matching exercise.

Useful distinctions between visual loss, residual phenomena and awareness.

Detailed explanation of the classic localization pattern; based partly on older textbook material, not personal diagnostic advice.

Detailed anatomy and differential diagnosis. Some text comes from a 2012 textbook; it is not personal advice or a current treatment guideline.

Technical explanation of eye-movement initiation and related examination concepts.

Educational explanation within a broader eye-movement chapter; not an individualized diagnosis or referral guarantee.

Detailed pathway explanation; its position-test discussion should be read alongside the later acute-study limitations summarized here.

Definitions separating allesthesia, persistence, duplication and related visual experiences.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Canada · International

Stevens–Johnson Syndrome Canada

Condition-specific education, counseling information and support meetings. The official page lists upcoming 2026 virtual events; meeting access and service eligibility should be checked directly.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Stroke Association

Staff-moderated conversation for survivors, carers and families. It is broader than visual-field loss; peer contributions are not medical advice.

More about this organization’s scope

Public information about a staff-moderated stroke community for survivors and carers. Broader than carotid dissection; accounts and private participation are optional external services, not accessed here.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

stroke.org — linked resources

Information, local support-group routes and the AHA/ASA Support Network. Peers can discuss living after stroke but do not replace a vision or rehabilitation assessment.

More about this organization’s scope

Stroke education and recovery support for survivors and caregivers. Groups in the registry may be independently run; confirm schedules and eligibility. Not all dissections cause a stroke.

Broader stroke support for people and families affected by stroke; not a dedicated OIS group. Registered groups may be independent; confirm meetings and eligibility.

Stroke education and adjustment support for people and families affected by stroke. Groups are broader than retinal arterial disease; check local eligibility and schedules.

Useful after a clinician identifies a vascular episode or stroke-related support need. This is not a diagnosis service for every transient visual symptom.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · Australia · International

Sydney Children’s Hospitals Network hydrocephalus factsheet

Explains childhood hydrocephalus, eye issues, learning and follow-up. Local referral and emergency instructions vary by country.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

TFOS DEWS III summaries

Current diagnostic and management reports for a deeper discussion with an eye-care professional. Technical algorithms are not home diagnostic tests.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · International

The Achromatopsia Group

Links to achromatopsia discussion and support networks. Achromatopsia differs from common red–green CVD. Peer experiences are not medical advice; membership may be required.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom

The Brain Charity — FND

Practical and emotional support information for people with FND.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

The Brain Tumour Charity

Condition information, children/family and young-adult support, counseling and online peer groups. Services have individual eligibility; peer posts are not treatment evidence.

More about this organization’s scope

For people with an established brain-tumour diagnosis and families, not everyone with a gaze problem. Official directory separates patient, carer, parent and young-adult communities; experiences are not medical advice.

General brain-tumor peer groups and support information, including people with non-malignant tumors. Not ONSM-specific advice; check group eligibility.

Broader pediatric and family brain-tumor support, useful for sporadic as well as syndromic disease. Peer discussion is not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia · International

The Fred Hollows Foundation

Works with partners to improve access to eye care and treatment of avoidable blindness, including cataract.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

The Lily Foundation

Broader mitochondrial-disease family support, education and research information. Regional eligibility and available practical help should be checked with the organization; not a condition-specific treatment service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

The MAGIC Foundation

Growth and endocrine-disorder charity with an ONH/SOD division. Its current resources page offers parent matching and identifies support groups; these are lay support rather than medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

The Migraine Trust

Migraine information, a support service, research, advocacy and guidance on school and work. Contact details and service availability are maintained on its own site.

More about this organization’s scope

Migraine education and support, relevant when migraine is an identified contributor rather than for every perceptual symptom.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

The MOG Project

MOGAD-specific educational materials and links to small-group and social support. Peer participation is not medical advice; check current program access. The public hub lists virtual and private peer groups; no private content was inspected and peer support is not medical advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · Europe · International

The Pituitary Foundation

Information, endocrine/general support, local groups and telephone buddies after pituitary illness. Peer connection is not emergency assessment.

More about this organization’s scope

Pituitary information, nurse/general support, telephone buddies and local or online groups. Peer support does not replace specialist endocrine or eye care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

The Snow Foundation

Wolfram-specific research information, resources, events and an organization-linked peer community. The Facebook group may require login; its moderation and current discussions were not independently inspected.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

The Sumaira Foundation

NMOSD and MOGAD education, support meetings, caregiver conversations and practical assistance-program information. Patient/caregiver-led peer meetings support connection, not medical or emergency advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States · International

The TED Community Organization

One-hour peer-facilitated Zoom conversations for TED and Graves disease, with optional camera use and published no-medical-advice/privacy guidelines. Registration is through the external organization; confirm upcoming dates.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Thrombosis UK

CVST leaflet, clot education, recovery resources and facilitated support meetings. The leaflet is dated November 2023 with a November 2025 review target; use current clinical guidance for prescribing decisions.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Thyroid Eye Disease Charitable Trust

TED-specific support team, patient information meetings, videos and a publicly linked UK community group. Confirm current meeting details; support discussions cannot assess threatened sight.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Research organization · International

UCL — PCA programme

Academic research and clinical background on the syndrome.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

United Mitochondrial Disease Foundation

Broader mitochondrial-disease support, education and specialist discovery, rather than a Costeff-specific service. Peer and lay support are not medical advice.

More about this organization’s scope

Mitochondrial-disease education, support and a calendar including virtual meetings. These cover multiple mitochondrial diagnoses; a listed treatment or trial is not automatically relevant to this condition.

Mitochondrial disease education, support ambassadors, specialist discovery and research participation information. This lay organization does not provide medical advice.

MELAS-specific education, support-team routes and information about meetings and research.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Vision rehabilitation · United Kingdom · International

University Hospitals of North Midlands: Adult orthoptics

Includes a fourth nerve palsy leaflet and describes follow-up measurements; hospital care follows local referral arrangements.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom · International

University Hospitals Plymouth: YAG capsulotomy

Current 2025 procedure and aftercare information. Follow the instructions of the service actually treating the eye.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States · International

University of Iowa Ophthalmology

Explains the pathway with a clinical example; a case image is not a diagnostic matching test.

More about this organization’s scope

Clearly distinguishes the basic eye-movement pattern from added facial-nerve involvement; illustrated cases are not diagnostic matching tools.

Detailed educational case and discussion. A case example does not establish the cause or treatment for another person.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United States

US Food and Drug Administration

Official indication, approval documents and prescribing information, distinct from a guarantee of coverage or suitability.

More about this organization’s scope

Public information on voluntary suspected adverse-event reporting for patients and professionals; not an emergency service or individualized treatment advice.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Peer community · United States · International

Usher Syndrome Coalition — community connections

Official directory for the private Discord community and adult/family Blue Book email forum. These are non-medical peer spaces with their own access and privacy rules; no group was joined.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Vasculitis Foundation

GCA education, treatment-guideline links, specialist and support resources, and patient-research opportunities.

More about this organization’s scope

Facilitated virtual groups, parent, young-adult and care-partner routes, plus affiliated community groups. Registration and space limits apply. Peer support does not replace urgent eye or rheumatology advice.

Useful when an associated vasculitis has been diagnosed. Facilitated meetings and affiliated community groups; this does not imply that every case of scleritis is vasculitis.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International · Europe

Vasculitis UK

Patient-led information, support helpline and links to local support-group contacts. Check current service hours; not an emergency assessment line.

More about this organization’s scope

Ophthalmologist-authored explanation of affected eye structures, examination and the need to report visual changes. An undated educational page, not a substitute for current prescribing guidance.

Explains how systemic vasculitis can affect different eye structures. Its support directory is a broader route for people with relevant systemic disease, not proof that all retinal vasculitis is systemic.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

vestibular.org — linked resources

Patient education, provider and support-group directories and online connections. Most relevant to vestibular causes; peer discussion is not medical advice.

More about this organization’s scope

Searchable support-group connections for vestibular conditions; group participation is separate from clinical care.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Australia

Vision Australia

Practical low-vision services, assistive technology and community support, with CBS information and signposting. Service availability depends on location and eligibility; it is broader than CBS.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Programs through local partners in selected underserved communities; coverage varies

VisionSpring

Nonprofit social-enterprise work improving eyeglass access. Program and partner information, not a worldwide individual appointment service.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · Europe

Visual Snow Europe

Patient information, medical-visit tips, awareness work and research summaries. Personal treatment experiences are lived-experience reports, not controlled efficacy evidence.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United States · International

Visual Snow Initiative

Visual snow education, research updates, accommodations and a clinician directory. Its directory is a starting point for checking a clinician’s qualifications and access, not a VisualSim endorsement. Treatment-news stories should be read alongside the original study and its limitations.

More about this organization’s scope

Visual snow education and care navigation that may be useful when a clinician finds palinopsia within VSS. It does not cover every neurologic, ocular or medication-related cause of recurrent images.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · International

who.int — linked resources

Current disease and elimination overview; national programmes determine local treatment access.

More about this organization’s scope

Resources about quality affordable refractive services. WHO does not directly provide an individual prescription or spectacles.

Current disease explanation and SAFE strategy. Elimination as a public-health problem does not mean every person with old scars no longer needs care.

Explains the ocular spectrum and the limits of interpreting serum retinol; historical burden figures on this page are not presented as current global counts.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · United Kingdom · International

Wolfram Syndrome UK

Family and adult support, specialist-clinic information, conference and research updates. Local services have their own referral arrangements.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Charity & practical support · International

World Eye Cancer Hope — Supporting families

Retinoblastoma information, family/survivor connections, virtual events and help navigating care access.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Clinical education · United Kingdom

York and Scarborough Teaching Hospitals: Sixth nerve palsy leaflet

Patient and carer explanation of distance symptoms, examination and variable improvement.

Link verification

Official website pages checked 24 October 2026. This confirms the source of the links, not the quality of every external post or availability of individual care.

Find more organizations worldwide

This is a curated starting point, not a complete list of every organization. These networks help extend the search beyond our current English-language selection.

IAPB member organizations

Search an international eye-health network by country. Members include charities, professional bodies, services and other organizations; membership is not a quality ranking.

World Blind Union members

Find national and regional organizations representing blind and partially sighted people, including advocacy and access to information.

Practical next steps

Find the right kind of care

Professional organizations can explain specialties and care pathways. A charity or peer group may help you prepare, but is not a substitute for an assessment.

Ask about daily-life support

Look for vision rehabilitation, orientation and mobility, school or work adjustments, accessible technology and caregiver support. Availability depends on location and eligibility.

Understand a research opportunity

Learn about clinical studies before considering participation. A registry listing does not mean an intervention is proven or locally available.

More vision topics

Search the expanded condition library, including the neuro-ophthalmology checklist and rare disorders. These 40 references from our initial coverage review are retained below. The links below open established external clinical references. These are not new VisualSim simulators: some conditions need a reference and support guide before a visual model is appropriate.

40 external clinical references

External reference · Retina and macula

Retinal tears and retinal detachment

External clinical reference; no dedicated VisualSim guide or model is offered here.

NEI — Retinal detachment
External reference · Focus and eye surface

Keratoconus and corneal ectasia

External reference focuses on keratoconus; corneal ectasia includes other conditions.

AAPOS — Keratoconus
External reference · Eye movement and optic nerve

Double vision and ghosting (diplopia)

External reference distinguishes double vision affecting one eye from double vision involving both eyes.

NHS — Double vision
External reference · Eye movement and optic nerve

Optic neuritis

External clinical reference; no dedicated VisualSim guide or model is offered here.

NANOS — Optic neuritis
External reference · Brain based and childhood vision

Cerebral/cortical visual impairment (CVI)

CVI requires individual assessment; a blur filter does not reproduce brain-based visual processing.

NEI — Cerebral visual impairment
External reference · Retina and macula

Retinal vein occlusion (central and branch)

External reference focuses on central retinal vein occlusion; branch occlusion is a related but distinct form.

ASRS — Central retinal vein occlusion
External reference · Retina and macula

Retinal artery occlusion / eye stroke

External specialist reference; no VisualSim diagnostic model is offered here.

ASRS — Central retinal artery occlusion
External reference · Retina and macula

Epiretinal membrane / macular pucker

External clinical reference; no dedicated VisualSim guide or model is offered here.

ASRS — Epiretinal membranes
External reference · Retina and macula

Macular hole

External clinical reference; no dedicated VisualSim guide or model is offered here.

ASRS — Macular hole
External reference · Inflammation and injury

Uveitis and ocular inflammation

External clinical reference; no dedicated VisualSim guide or model is offered here.

NEI — Uveitis
External reference · Eye movement and optic nerve

Nystagmus: infantile and acquired

External reference covers infantile and acquired forms; eye movement does not always mean the world appears to shake.

AAPOS — Nystagmus
External reference · Brain based and childhood vision

Amblyopia

External reference for a developmental visual condition; amblyopia and strabismus are different conditions.

NEI — Amblyopia
External reference · Brain based and childhood vision

Strabismus and binocular vision

External reference for eye alignment; not everyone with strabismus experiences double vision.

AAPOS — Strabismus
External reference · Brain based and childhood vision

Retinopathy of prematurity (ROP)

External reference for families; a visual simulation cannot replace scheduled ROP examinations.

NEI — Retinopathy of prematurity
External reference · Inherited vision conditions

Albinism and associated visual impairment

External reference covers the range of visual effects of albinism; experiences differ between people.

AAPOS — Albinism
External reference · Inherited vision conditions

Usher syndrome

External reference includes hearing, vision and balance; Usher syndrome needs dual-sensory support.

NIDCD — Usher syndrome
External reference · Inherited vision conditions

Leber hereditary optic neuropathy (LHON)

External reference for LHON; this is distinct from Leber congenital amaurosis.

NLM MedlinePlus Genetics — Leber hereditary optic neuropathy
External reference · Inherited vision conditions

Achromatopsia and cone dysfunction

External reference focuses on achromatopsia; a grayscale filter does not reproduce its full visual effects.

AAPOS — Achromatopsia
External reference · Focus and eye surface

Fuchs endothelial corneal dystrophy

External clinical reference; no dedicated VisualSim guide or model is offered here.

NEI — Corneal dystrophies
External reference · Infections and global eye health

Microbial keratitis / corneal ulcer

External eye-hospital reference; no VisualSim diagnostic model is offered here.

Moorfields Eye Hospital — Microbial keratitis
External reference · Infections and global eye health

Trachoma

External global-health reference; no single visual filter describes every person’s experience.

WHO — Trachoma
External reference · Infections and global eye health

Onchocerciasis / river blindness

External global-health reference; prevention and care depend on local services.

WHO — Onchocerciasis
External reference · Inflammation and injury

Eye trauma and chemical injury

External eye-injury reference; no simulator-based injury assessment is offered here.

NHS — Eye injuries
External reference · Eye and systemic health

Thyroid eye disease (TED)

External clinical reference; no dedicated VisualSim guide or model is offered here.

NEI — Graves eye disease / thyroid eye disease
External reference · Brain based and childhood vision

Visual neglect / spatial inattention after stroke

Spatial inattention is different from a visual-field defect; a shaded half-screen does not reproduce neglect.

American Stroke Association — Spatial neglect
External reference · Visual symptoms

Photophobia / light sensitivity

Light sensitivity is a symptom with several causes; a display cannot reproduce eye pain.

Cleveland Clinic — Photophobia
External reference · Visual symptoms

Night blindness / dark-adaptation difficulty

Night-vision difficulty is a symptom with several causes; this is not a night-driving assessment.

Cleveland Clinic — Night blindness (nyctalopia)
External reference · Brain based and childhood vision

Optic nerve hypoplasia

External reference for a congenital optic-nerve condition; visual function varies between people.

AAPOS — Optic nerve hypoplasia