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  Eye Info - Normal Eye Vision
NORMAL VISION
NEARSIGHTEDNESS
FARSIGHTEDNESS
ASTIGMATISM
PRESBYOPIA
   

Emmetropic Eye - Normal Eye Vision

Much like a camera, the eye works by focussing light rays. Light rays enter the eye through the cornea. The cornea takes widely diverging rays of light and bends them through the pupil. The lens of the eye then makes the delicate adjustments in the path of the light rays in order to bring the light into focus upon the retina. The photoreceptor nerve cells of the retina change the light rays into electric impulses which are carried by the optic nerve to the brain where an image is perceived.

 
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