Presbyopia is part of the natural aging process of the eye, and
can be easily corrected. Technically, presbyopia is the loss of
the eye's ability to change its focus to see objects that are
near. It is not a disease. It's as natural as wrinkles, and it
affects everybody at some point in life. Presbyopia generally
starts to appear around age 45. Presbyopia is often confused
with farsightedness , but the two are different. Presbyopia
occurs when the eye's lens loses flexibility. Farsightedness
occurs as a result of the shape of the eyeball, which causes
light rays to bend incorrectly once they have entered the eye.
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