What is a presbyopia?by aman in Science at 2017-04-17 16:15:09 got 1 Comments 13 Views
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aman comment on "What is a presbyopia?"The farsightedness defect of vision agreeing with the age is called presbyopia. with the age of a person the power of accommodation of the eye decreases due to the weakening of ciliary muscles. in other words the ciliary muscles do not remain strong enough to exert tension on the crystalline lens to change its curvature. as a result the near point recedes in a natural way and it leads to far sightedness.
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