Describe the Construction of human eye
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Construction of Eye
The front part of the eye called cornea, is made of transparent substance and its outer surface is convex in shape. It is through cornea that the light coming from objects enters the eyes. Just behind the cornea is iris which is also called coloured diaphragm. A hole in the middle of the iris is called pupil. Then behind it is the eye lens which is a convex lens. It is due to the support of ciliary muscles that the eye lens is held in position. Eye lens is flexible and thus can change its focal length and shape with the help of ciliary muscles.
Behind the eye lens is retina on which the image is formed in the eye.
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