title: Current estimates of blindness in India.
abstract: BACKGROUND
  Evidence based planning has been the hallmark of the blindness control programme in India. A nationwide survey was undertaken in 1999-2001 to document the magnitude and causes of blindness.
  
  
  METHODS
  One district each in 15 populous states was covered. 25 clusters were randomly selected in each district and all individuals aged 50 years and above were enumerated. Presenting and best corrected vision was recorded using retroilluminated logMAR tumbling E charts and detailed eye examination was offered.
  
  
  RESULTS
  The response rate was 89.3%. Presenting vision <6/60, in the better eye, was observed in 8.5% (95% CI: 8.1 to 8.9). Age, sex, residence, literacy, and working status were associated with blindness. The highest risk was among those aged 70+ and the illiterate. Cataract was responsible for 62.4% of bilateral blindness. Prevalence of cataract blindness was 5.3% (95% CI: 4.97 to 5.62). Reduction in blindness prevalence among people aged 50 years and above was observed compared to earlier studies.
  
  
  CONCLUSIONS
  Blindness control efforts seem to have played a part in arresting the increasing prevalence of blindness in India and there is hope that the goals of the "Vision 2020--right to sight" initiative can be achieved if there is strong political will and prioritised action.
authors.affiliation: Community Ophthalmology, Dr RP Centre for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi, India 110029. comoph@vsnl.com
authors.forename: G Venkata S
authors.initials: GV
authors.lastname: Murthy
authors.forename: S K
authors.initials: SK
authors.lastname: Gupta
authors.forename: D
authors.initials: D
authors.lastname: Bachani
authors.forename: R
authors.initials: R
authors.lastname: Jose
authors.forename: N
authors.initials: N
authors.lastname: John
mesh_terms: D017677:Age Distribution; D000368:Aged; D001766:Blindness / Q000453:epidemiology* / Q000209:etiology; D002386:Cataract / Q000150:complications / Q000453:epidemiology; D004651:Employment; D005260:Female; D006306:Health Surveys; D006801:Humans; D007194:India / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012306:Risk; D012923:Social Class
references.citation: Br J Ophthalmol. 2002 May;86(5):505-12
references.pmid: 11973242
references.citation: Ophthalmic Epidemiol. 2002 Dec;9(5):299-312
references.pmid: 12528915
references.citation: Ophthalmology. 2003 Aug;110(8):1491-8
references.pmid: 12917162
references.citation: Bull World Health Organ. 1995;73(1):115-21
references.pmid: 7704921
references.citation: J Med Screen. 1995;2(2):109-14
references.pmid: 7497155
references.citation: Indian J Ophthalmol. 1995 Mar;43(1):35-43
references.pmid: 8522371
references.citation: Natl Med J India. 2001 Nov-Dec;14(6):327-34
references.pmid: 11804362
references.citation: Int J Epidemiol. 1997 Oct;26(5):1049-54
references.pmid: 9363527
references.citation: Lancet. 1998 May 2;351(9112):1312-6
references.pmid: 9643793
references.citation: Eye (Lond). 1999 Jun;13 ( Pt 3b):449-53
references.pmid: 10627823
references.citation: Bull World Health Organ. 2001;79(3):249-56
references.pmid: 11285671
references.citation: Ophthalmology. 2001 Apr;108(4):679-85
references.pmid: 11297483
references.citation: Br J Ophthalmol. 2001 Jun;85(6):635-7
references.pmid: 11371475
references.citation: Indian J Ophthalmol. 1996 Dec;44(4):241-4
references.pmid: 9251272