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Short Note
Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.
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Solution
The eye lens being convex in nature converges the light rays incident on it. Hence, it focuses the light falling on it on a thin layer of nerve cells called the retina. Two Ciliary muscles hold the lens within the eye-ball and it relaxes and tightens to change the focal length of the eye lens to get a clear image on the retina.
Concept: Human Eye: Structure of the Eye
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