Q. Consider the following statements about Myopia:

1. It is called far-sightedness.
2. It is due to excessive curvature of lens
3. It is corrected using concave lens.

Which of the above is / are correct?
Answer: Only 2 and 3
Notes: Myopia is also known as near-sightedness. A person with myopia can see nearby objects clearly but cannot see distant objects distinctly. A person with this defect has the far point nearer than infinity. This defect may arise due to (i) excessive curvature of the eye lens, or (ii) elongation of the eyeball. This defect can be corrected by using a concave lens of suitable power.