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Defects of Vision and Their Correction

The inability...

Question

The inability among the elderly to see nearby objects clearly because of the weaking of the ciliary muscles is called

A

far-sightedness

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B

near-sightedness

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C

presbyopia

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D

astigmatism

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Solution

The correct option is C presbyopia
Presbyopia
This is caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age.The ciliary muscles become weak and can not adjust shape of lens any more to change focal length of eye lens so the person can not see nearby objects clearly.

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Q. The inability among the elderly to see nearby objects clearly because of the weakaning of the ciliary muscles is called

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Defects of Vision and Their Correction

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