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The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size. The lens then changes shape to allow the accurate focusing of light on the retina. Light excites photoreceptors that eventually, through a chemical process, transmit nerve signals through the optic nerve to the brain. The brain processes these nerve impulses into sight.
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EYE ANATOMY - Desktop Nexus AbstractDownload free wallpapers and background images: EYE ANATOMY. Desktop Nexus Abstract background ID 146905. The cornea allows light to enter the eye. As light passes through the eye the iris changes shape by expanding and letting more light through or constricting and letting less light through to change pupil size. The lens then changes shape to allow the accurate focusing of light on the retina. Light excites photoreceptors that eventually, through a chemical process, transmit nerve signals through the optic nerve to the brain. The brain processes these nerve impulses into sight. 4.4
Total Downloads: 613
Times Favorited: 4
Uploaded By: ramyadevims
Date Uploaded: August 03, 2009
Filename: Eye.JPG
Original Resolution: 1024x768
File Size: 156.79 KB
Category: Other
Wallpaper ID: 146905 
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Wallpaper Statistics
Total Downloads: 613
Times Favorited: 4
Uploaded By: 
Date Uploaded: August 03, 2009
Filename: Eye.JPG
Original Resolution: 1024x768
File Size: 156.79 KB
Category: 
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