Hypermetropia is corrected by using __________ of suitable power.

Hypermetropia, commonly referred to as far-sightedness, is a condition where a person experiences difficulty focusing on nearby objects while distant objects remain clear. This defect arises either because the focal length of the eye lens is excessively long or the eyeball is shorter than normal.

To correct hypermetropia, convex lenses of appropriate power are used. These lenses help in converging the incoming light rays so that the image is formed directly on the retina, restoring clear vision. Convex lenses are designed specifically for conditions where the light focuses behind the retina, which is a characteristic of this defect.

In exams, you might encounter questions such as "Which of the following is an appropriate lens type used to correct hypermetropia?" The correct response to such questions is always "convex lens." Understanding the optical function of a convex lens helps in identifying its role in focusing light onto the retina for hypermetropia patients.