The optic nerve, which sends visual signals from the eye to the brain, consists of about one million fibers. Because transplanting a whole eye would require that the optic nerve be cut and then reattached, scientists do not expect that this type...
Frequently Asked Questions
The visual acuity test is used to determine the smallest letters a person can read on a standardized chart or card held 14 - 20 feet away.
Currently, the NEI does not have a factsheet on this test.
For more information from other...
The United States Eye Injury Registry is a non-profit organization that collects data in 40 states on serious eye trauma occurring in the United States.
United States Eye Injury Registry
http://...
Today, patients take an active role in their health care. You and your doctor will work in partnership to achieve your best possible level of health. An important part of this relationship is good communication. Here are some questions you can...
The National Library of Medicine coordinates PubMed, a computerized medical literature database. PubMed provides access to over 24 million medical literature citations from 1966 to the present and includes links to many sites providing full text...
The FDA is responsible for protecting the public health by assuring the safety, efficacy, and security of human and veterinary drugs, biological products, medical devices, our nation’s food supply, cosmetics, and products that emit radiation. The...
The Comparison of Age-related Macular Degeneration Treatments Trials: Lucentis-Avastin Trial (CATT) was a multicenter clinical trial that compared the relative safety and effectiveness of two drugs currently used to treat advanced age-related...
Currently, no treatment exists for early age-related macular degeneration (AMD), which in many people shows no symptoms or loss of vision. People with intermediate AMD may benefit from taking the AREDS formula to slow down the progression of the...
The early and intermediate stages of age-related macular degeneration (AMD) usually start without symptoms. Only a comprehensive dilated eye exam can detect AMD. The eye exam may include the following:
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The National Eye Institute collaborated with Prevent Blindness America to apply data from major epidemiology studies to the 2010 U.S. Census population to calculate the prevalence of sight-threatening eye diseases in Americans age 40 and older....