National Institutes of Health
National Eye Institute: Health Information
This site provides a wealth of information regarding the human eye. Special focus is given to the diseases and disorders, ranging from age-related mascular degeneration to usher syndrome.
Other
All About vision.com: Eye Conditions and Diseases
Many articles with consumer information about lenses, eyewear, eye problems, and unique eye conditions. Vast content and many links to off-site information.