Question

The most common cause of blindness in India is?

• A. Cataract
• B. Trachoma
• C. Refractive errors
• D. Vitamin A deficiency

Hint:

It is an age-related lens opacity that contributes about two-thirds of blindness in India.

Answer 1

The Correct Option is A

Step 1: Blindness in India is graded by national surveys, and cataract is consistently the leading cause, accounting for roughly 60 to 70 percent of all blindness in the country.

Step 2: Cataract leads because it is an age-related lens opacity that is highly prevalent in an ageing population and accumulates as a backlog where surgical coverage is incomplete.

Step 3: Refractive error is the second most common cause and is the leading cause of avoidable visual impairment, but it ranks below cataract for blindness. Trachoma and vitamin A deficiency are now much less common causes after control programmes, so they are not the answer.