Blindness/Vision Impairment

A limitation of one or more functions of the visual system. The most common vision impairments affect: The sharpness or clarity of vision (visual acuity) The normal range of what you can see (visual fields).

The American Academy of Ophthalmology

A visually attractive, well-maintained, and very useful site addressed to the general public as well as the Academy's professional members. It includes links to EyeNet magazine and the Ophthalmology Journal, an online education center, a listing of member ophthalmologists, and a list of useful links.

American Optometric Association

This attractive and well-organized site offers information about eye conditions and concerns, and clinical care.

The Blindness Resource Center

The Blindness Resource Center from the New York Institute for Special Education is a clear and comprehensive guide to Internet and other resources on blindness, braille, the deaf-blind, eye conditions, national and international organizations, universities, research, helpful technology, and other topics. To increase accessibility of the site, it is available in graphic, text-only, large print, and Netscape frames format.

Foundation Fighting Blindness

Learn about specific retinal conditions and health and prevention topics related to vision and blindness.

The National Eye Institute (NEI)

The National Eye Institute, one of the National Institute's of Health, offers extensive information on vision disorders in English and Spanish, what's new in research, and public and professional education programs. Free publications, videotapes, facts sheets, and resource lists are available online and by order form.

Prevent Blindness America

The Prevent Blindness America site, features easy-to-use Family Home Eye Checks for adults and children, Eye Facts and Fun, links to other sites of interest, and information on finding a local Prevent Blindness affiliate.

Dana Articles

Optogenetics Moves Towards the Clinic

Treating inherited retinal disease and deafness are likely near-term applications. 

Artificial Sight: Restoration of Sight through Use of Argus II, a Bioelectronic Retinal Implant

More than 1 million Americans are legally blind and another 10% cannot detect light. With increased mean lifespan, the frequency of age-related eye disease will double in the next 30 years. A significant percentage of the non-treatable blindness stems from loss of photoreceptors (the rods and cones). Once photoreceptors are lost, restoring useful vision to blind patients has been impossible.

Studying the Blind Leads to New Insights in Human Brain Specialization

ir ability to use brain real estate slotted for vision for touch perception suggests that sense areas could be driven by task, not the type of sense.

The Senses—A Primer (Part II)

Although sensory systems share basic features of organization, each is uniquely designed to respond to a particular aspect of the world. Here are some specifics on vision, hearing, taste and smell, and somatosensory systems.

The Senses—A Primer (Part I)

Although sensory systems share basic features of organization, each is uniquely designed to respond to a particular aspect of the world. We might think of the principal senses as variations on a common theme.