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Eye

In a normal eye, light passes through the pupil and is focused by the lens onto the retina at the back of the eye. The retina converts light into electrical impulses that are carried to the brain. The brain interprets the impulses as visual images.

Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Specialist Medical Reviewer Carol L. Karp, MD
- Ophthalmology
Last Updated August 13, 2007

WebMD Medical Reference from Healthwise

Last Updated: August 13, 2007
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