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A member asked:
How can the cornea bend light?
A doctor has provided 1 answer
Refraction: Light is bent when it passes from one medium of a certain density to another of a different density. In the case of the cornea, it is passing from air, through the clear cornea which acts like a lens, focusing the incoming light signficantly. It is further bent by the lens inside the eye and hopefully will focus perfectly on the retina at the back of the eye for best vision.
Answered 1/28/2015
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