Farsightedness »
Introduction
About 1 in 4 people in the U.S. have hyperopia or farsightedness, but
fortunately there are more ways to correct this eye disorder than ever before.
People with hyperopia or farsightedness have difficulty focusing on objects
close up, such as print in a book. More severe hyperopia would also cause
problems with seeing objects in the distance clearly, such as highway signs.
The occurrence of hyperopia increases with age; At least half of all persons
over the age of 65 have some degree of farsightedness.
What Causes It?
Hyperopia is a refractive error, like astigmatism and nearsightedness
(myopia). Having a refractive error means that light rays bend incorrectly into
your eye to transmit images to the brain. Farsightedness occurs when light
entering the eye focuses behind the retina, instead of directly on it. An
abnormally flat cornea or short eye can cause the light to enter the eye this
way.
H...
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