Number of vision centers under vision 2020, a national program for control of blindness are -
20
200
2000
20000
Ans. is 'd' i.e., 20000 The proposed structure for vision 2020, NPCB : Vision centres 20,000 (Primary level)Service centres 2,000 (Secondary level)Tranning centres 200 (Teiary level)Centres of Excellence 20 (COE)