Q:

People over 45 years of age eventually require reading glasses. This condition (known as presbyopia) is the result of which of the following conditions?

belongs to book: Examination Questions and Answers in Basic Anatomy and Physiology|Martin Caon|| Chapter number:14.4| Question number:15

waelhammad

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2022-10-19

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People over 45 years of age eventually require reading glasses. This condition (known as presbyopia) is the result of which of the following conditions?

the loss of elasticity in the lens
the development of cataracts in the lens
the decrease in the refractive index of the cornea
the degeneration of the cone cells of the retina.

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waelhammad

2022-10-19

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A: The elastic lens loses some of its elasticity with age so is not able to focus light from nearby objects such as books. Hence “reading” glasses – which have convex lenses – become necessary.

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