Correct option is B
Ans. (b) Cataract
Sol.
Cataract is the leading cause of blindness in India, particularly among the elderly. It is a clouding of the eye lens that impairs vision, and it is treatable with surgery.
Explanation of each option:
·
(a) Vitamin A deficiency – Causes night blindness but not the most common cause of total blindness.
·
(b) Cataract –
Correct. Most common cause of blindness in India.
·
(c) Glaucoma – A significant cause, but less common than cataract.
·
(d) Refractive error – Can cause visual impairment but is
correctable and rarely leads to blindness.