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Common Defects of the Eye

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Give the biological/technical term of the eye lens losing flexibility resulting in a kind of long-sightedness in elderly people.

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Solution

Presbyopia:
Presbyopia is an age-related eye condition that makes it difficult to see nearby objects clearly.
After age 40, the lens of the human eye becomes heard thereby losing the capacity for contraction and relaxation (flexibility) and thus people face difficulties to see, particularly in reading.
It can be corrected by using glasses with bifocal or convex lenses.

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Common Defects of the Eye

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