URL of this page: http://www.nlm.nih.gov/medlineplus/ency/anatomyvideos/000106.htm

Retina

Overview

As light enters the eye, it strikes the receptor cells of the retina called the rods and cones. A chemical reaction results in the formation of electric impulses, which then travel to the brain through the optic nerve.

Update Date 12/6/2012

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