Question

Heyyyy please!! answer my question..
what are myopia and hypermetropia explain it's causes..

Answer 1

MYOPIA
A condition in which close objects appear clearly, but far ones don't.

CAUSES

Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.

HYPERMETROPIA
Hyperopia develops in eyes that focus images behind the retina instead of on the retina, which can result in blurred vision.

CAUSES

This occurs when the eyeball is too short, which prevents incoming light from focusing directly on the retina. It may also be caused by an abnormal shape of the cornea or lens.

Answer 2

Myopia (Short-sightedness)

Myopia is a defect of vision in which a person clearly sees all the nearby objects but is

unable to see the distant objects comfortably. A myopic eye has its far point nearer than

infinity. It forms the image of a distant object in front of its retina. Myopia is caused by

• Increase in curvature/power of the lens

• Increase in length of the eyeball

Hypermetropia is a defect of vision in which a person can see distant objects clearly and

distinctively but is not able to see nearby objects comfortably and clearly. A

hypermetropic eye has its least distance of distinct vision greater than 25 cm.

Hypermetropia is caused due to

• Reduction in the curvature of the lens

• Decrease in the length of the eyeball