Which among the following defects is also known as far-sightedness?

Correct option is C

The correct answer is C
Explaination:
· Hypermetropia is the eye defect that is also known as far-sightedness. A person with this condition can see distant objects clearly but has difficulty focusing on near objects.

· This occurs because the image of the object is formed behind the retina, rather than directly on it.
· It is typically corrected by using a converging lens (convex lens).
Information Booster:
· Hypermetropia can occur if the eyeball is too short or if the focal length of the eye lens is too long.
· The near point of a person with Hypermetropia shifts farther away than the normal near point of 25cm.
Additional Knowledge:

• Myopia (A): This is known as near-sightedness. The image is formed in front of the retina, and it is corrected by a diverging lens (concave lens).
• Cataract (B): This is a condition where the eye's lens becomes cloudy or opaque, causing blurred vision. It is usually treated with surgery.
  
• Presbyopia (D): This is an age-related condition where the eye gradually loses its ability to focus on nearby objects due to the weakening of the ciliary muscles and the loss of flexibility of the lens. It is often corrected using bifocal lenses.