Farsightedness, also called hyperopia, is the inability of the eye
to focus on nearby objects and sometimes on distant objects also. This
occurs because the light entering the eye is focused behind the retina instead
of directly on it.
Farsightedness occurs when an eye is too short lengthwise, the
cornea is not curved enough, or the lens sits farther back in the eye than
normal.
Eyeglasses or contact lenses are used most often to correct
farsightedness. In some cases surgery can improve vision.