What is the cause of presbiopic defect?

Gradual weakening of lens

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Gradual weakening of ciliary muscles

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Diminishing flexibility of eye lens

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Both B and C

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Solution

The correct option is D
Both B and C

Presbyopia is caused because of gradual weakening of ciliary muscles and diminishing flexibility of the eye lens.

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Similar questions

Gradual weakening of ciliary muscles with age causes:

Relaxation of the ciliary muscles causes the focal length of eye lens to:

The change in focal length of an eye lens is caused by the action of the

(a) pupil

(b) retina

(d) iris

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