Social & Preventive Medicine Definition of Blindness when visual acuity is less than ___________ in better eye according to NPCB and WHO respectively A < 3/60 and < 6/18 B < 6/18 and < 3/60 C < 3/60 and < 3/60 D < 6/18 and < 6/18 💡 Explanation Definition of Blindness when visual acuity is less than ___________ in better eye according to NPCB and WHO respectively ✓ Correct Answer: C. < 3/60 and < 3/60