CBSE BOARD XII, asked by iskmsnsba2767, 11 months ago

What do you mean by Presbyopia in simple words short definition???

Answers

Answered by Anonymous
12

Answer:

Presbyopia is the defect of vision in which a person can't able to see nearby object as well as also can't able to see distant object is called Presbyopia.

• It can be corrected by using bifocal lens.

Answered by Anonymous
119

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Presbyopia :-

Presbyopia is the defect of eye in which a person cannot see further as well as nearer objects clearly.

This defect of vision commonly occurs in old people.

Causes:-

1). Weakening of the ciliary muscles.

2). Reduction in flexibility of the eye lens.

Correction:-

This type of defect can be corrected by using bi-focal lenses. A bifocal lens consist of both convex lens and concave lens.

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