Question

explain how the ciliary muscles adjust the focal length of eye lens​

Answer 1

Ciliary muscles are flexible and keep the lens in position

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Answer 2

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Ciliary Muscles adjust the focal length of eye lens by changing the shape of the lens while focusing.

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For this, the ciliary muscles relax to decrease the the curvature and thereby increase the focal length of the lens. Hence, the lens becomes thin. This enables a person to see the distant objects clearly.

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The ciliary muscles contract increase the curvature and thereby decrease the focal length of the lens, so that to see the near objects clearly.

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