The WHO definition for blindness is the inability of counting fingers in daylight at a minimum distance of –
Correct Answer: 3 metres
Description: WHO definition blindness - inability to count fingers in day light at a distance of 3 metres or visual acuity less than 3/ 60 or its equivalent. Ref- Park&;s textbook of Preventive and social medicine 23rd edition. .
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Social & Preventive Medicine
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