- American Academy of Allergy, Asthma and Immunology
- American Academy of Optometry
- American Academy of Pediatrics
- American Association for Pediatric Ophthalmology and Strabismus (AAPOS)
- American Board of Ophthalmology
- American College of Cardiology
- American Diabetes Association
- American Disability Act (ADA)/Disability Information Index
- American Medical Association
- American Society of Cataract and Refractive Surgery (ASCRS)
- American Society of Ophthalmic Plastic and Reconstructive Surgery
- Association of American Medical Colleges
- Blinded Veterans Association
- CLAO – Contact Lens Association of Ophthalmologists
- Canadian Association of Veterinary Ophthalmology (C.A.V.O.)
- Canadian Ophthalmological Society
- Cornea Research Foundation of America
- European Ophthalmic Pathology Society
- German Ophthalmological Society
- Glaucoma Foundation of Australia, Inc.
- Glaucoma Research Foundation
- Immunet
- International Glaucoma Association
- International Perimetric Society
- International Society for Eye Research
- International Society of Online Ophthalmologists
- International Society of Refractive Surgery
- International Symposium on Interocular Tumors
- Internet Ophthalmology Society
- Japanese College of Veterinary and Comparative
- Joint Commission on Allied Health Personnel in Ophthalmology (JCAHPO)
- Joint European Research Meeting in Ophthalmology and Vision
- Korean Ophthalmology Society
- Medical Group Management Association (MGMA)
- Mie School of Medicine (Japan) – Dept. of Ophthalmolog
- National Heart, Blood, and Lung Institute
- National Keratoconus Foundation
- North American Neuro-Ophthalmology Society (NANOS)
- Ophthalmic Anesthesia Society
- Ophthalmic Photographers Society (OPS)
- Ophthalmic Research Laboratories – Cedars-Sinai Hospital
- Optical Society of America (Optics Net)
- Physicians Online.
- Prevent Blindness America
- Radiological Society of North America
- Sight and Hearing Association
- The Glaucoma Foundation
- The Foundation Fighting Blindness
- The Joint Commission on Allied Health Personnel in Ophthalmology (JCAHPO)
- The Joint European Research Meeting In Ophthalmology and Vision
- Venezuelan Neuro-Ophthalmology Home Page
- Venezuelan Society of Ophthalmology
- Vitreous Society Online
- World Health Organization
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