Question

Differentiate between myopia and hyperopia (cause of the defect)

Answer 1

Answer:

A person cannot clearly see the nearby objects as the image is formed behind the retina. The increase in focal length of the eye lens may be a cause. It may also be caused due to flattening of the eyeball. Hypermetropia may be corrected using the convex lens of suitable focal length

In myopia, a person is not able to see distant objects clearly. In this defect, the lens is not able to produce a sharp image of the distant objects on the retina. Instead, the image is formed in front of the retina. The reduction in the focal length of the eye lens is the cause behind it.

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Answer 2

Answer:

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People suffering from hyperopia have blurred vision of near objects and a clear vision of farther objects. Hypermetropia is also known as farsightedness. A person cannot clearly see the nearby objects as the image is formed behind the retina. The increase in focal length of the eye lens may be a cause.