what is Long-sightedness:

Long-sightedness:

In long-sightedness (farsightedness or

hyperopia), the eye cannot focus on

nearby objects. Although distant

objects are usually seen clearly, the 

near point is somewhat greater than

the "normal" 25 cm, 

This defect is caused by an

eyeball that is too short or (less often)

by a cornea that is not sufficiently

curved. It is corrected by a converging

lens.

Long-sightedness