Question

Name the defect shown in figure:

A. Myopia
B. Astigmatism
C. Hypermetropia
D. Presbyopia

Answer 1

Hint: The image of an object is formed when the rays coming from the object meet the retina. When the rays coming off the object are unable to meet at the retina. i.e. meet before or after it, it causes the various eye defects.

Complete answer:
As it can be seen from the image the rays of light coming from the object, which is placed close to the eye, is unable to converge at the retina and is converging behind the retina. As a result, the image of an object placed close to the eye is unable to form clearly at the retina and comes out as being blurry. This inability of forming a clear image of an object placed close to the eye is called farsightedness and this defect of the eye is called Hypermetropia.
In Hypermetropia, the rays coming from an object place close to the body is unable to meet at the retina and meets behind it and the brain gets a blurry image of the object. The objects placed far away can form clear images, and hence the name of the affected eye i.e farsighted eye.

So, the correct answer is “Option C”.

Note:
Farsightedness or Hypermetropia can be caused by several reasons. Maybe the lens of the eye has grown weaker and now is unable to focus the rays of light properly. It may also be caused due to the shortening of the eyeball, where the lens sent for the retina meets behind it behind the eyeball has shortened and the retina is closer to the lens.