Question:easy
Under the National Programme for Control of Blindness, to define blindness, the visual acuity should be less than
Under the National Programme for Control of Blindness, to define blindness, the visual acuity should be less than
Show Hint
NPCB defines blindness using the 3/60 visual acuity cut-off.
Updated On: Jul 7, 2026
- 3/60
- 6/60
- 1/60
- 6/24
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Recall how visual acuity is written.
A visual acuity fraction compares the test distance to the distance a normally sighted person can read the same letters from. The smaller the fraction, the worse the vision.
Step 2: Recall the NPCB rule.
India's National Programme for Control of Blindness defines a person as blind when the better eye, even with correction, sees at less than 3/60, or the visual field narrows to under 10 degrees.
Step 3: Check the alternatives.
6/60 and 6/24 are used to classify low vision or partial sight, not blindness. 1/60 is a smaller and stricter number than the actual programme cut-off.
Step 4: Conclude.
The defined cut-off for blindness under NPCB is visual acuity less than 3/60.
A visual acuity fraction compares the test distance to the distance a normally sighted person can read the same letters from. The smaller the fraction, the worse the vision.
Step 2: Recall the NPCB rule.
India's National Programme for Control of Blindness defines a person as blind when the better eye, even with correction, sees at less than 3/60, or the visual field narrows to under 10 degrees.
Step 3: Check the alternatives.
6/60 and 6/24 are used to classify low vision or partial sight, not blindness. 1/60 is a smaller and stricter number than the actual programme cut-off.
Step 4: Conclude.
The defined cut-off for blindness under NPCB is visual acuity less than 3/60.
Was this answer helpful?
0
