2007-04-21 05:54:11 · 4 answers · asked by diva 1 in Science & Mathematics ➔ Botany
cornea is the outer most part of r eye ........it is bulging outwards..it is through cornea that light enters the eye...so it basically allows the light to enter into the eye..
the lens (convex) converges the light passing through it...so that the image forms exactly on retina...
actually..most of the converging is done by the cornea ....only
the final convergence is done by the lens
2007-04-21 06:00:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This article says:
"The cornea is the transparent, dome-shaped window covering the front of the eye. It is a powerful refracting surface, providing 2/3 of the eye's focusing power. Like the crystal on a watch, it gives us a clear window to look through."
http://www.stlukeseye.com/anatomy/Cornea.asp
and
"The crystalline lens is located just behind the iris. Its purpose is to focus light onto the retina. "
http://www.stlukeseye.com/anatomy/Lens.asp
Pretty clearly put.
2007-04-21 06:01:13 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
plants do not have cornea and lens
2007-04-23 03:08:49 · answer #3 · answered by zanekevin13 4 · 0⤊ 0⤋
simplest answer: to bend light, which focuses image on retina
2007-04-21 13:27:45 · answer #4 · answered by Bio-student Again(aka nursegirl) 4 · 0⤊ 0⤋