When do we consider a person to be myopic or hypermetropic

When do we consider a person to be myopic or hypermetropic ? List two causes of hypermetropia. Explain using ray diagrams how the defect associated with hypermetropic eye can be corrected.

Answer

Myopia: Difficult to see the objects placed far away

Hypermtropia: Difficult to see very close or nearby objects.

Causes of hypermetropia:

i. The focal length of the eye lens is too long

ii. eye ball has become too small