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Eye Info - Normal |
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Emmetropic Eye
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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