Question

Explain how is the focal length of eye lens is changed by the ciliary muscles

when object distance when object distance from it changes? ​

Answer 1

Answer:

It is the ciliary muscles that can modify the curvature of the lens to change its focal length. To see a distant object clearly, the focal length of the lens should be larger. For this, the ciliary muscles relax to decrease the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin

Answer 2

it is the ciliary muscle that can modify the curveture

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