What is hypermetropia ? What are the causes of this defect ? How can this defect of the eye be corrected ?

Explanation

Hypermetropia : Hypermetropia is a vision defect in which a person can see the distant objects clearly but cannot see the nearby objects clearly.
Causes of hypermetropia :
1) The eye ball becomes too small along its axis so that the distance between the eye lens and the retina is reduced.
2) The focal lenght of the eye becomes too large resulting in the low converging power of the eye lens.
Correction of hypermetropia : A hypermetric eye is corrected by using a convex lens of suitable focal length.