Blindness and visual impairment and their causes in India: Results of a nationally representative survey

Avoidable blindness is a significant public health problem in India. Nationally representative RAAB surveys (Rapid Assessment of Avoidable Blindness) are being conducted periodically in the country to know the current status of blindness in the country. The current study describes the findings from...

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Bibliographic Details
Published in:PloS one 2022-07, Vol.17 (7), p.e0271736-e0271736
Main Authors: Vashist, Praveen, Senjam, Suraj Singh, Gupta, Vivek, Gupta, Noopur, Shamanna, B R, Wadhwani, Meenakshi, Shukla, Pallavi, Manna, Souvik, Yadav, Saumya, Bharadwaj, Amit
Format: Article
Language:English
Subjects:
Acuity
Age
Assessments
Biology and Life Sciences
Blindness
Blindness - diagnosis
Blindness - epidemiology
Blindness - etiology
Cataract - complications
Cataract - epidemiology
Cataracts
Censuses
Complications
Cornea
Cross-Sectional Studies
Diabetic retinopathy
Diagnosis
Eye
Eye (anatomy)
Gender
Glaucoma
Humans
Impairment
India - epidemiology
Medicine and Health Sciences
Multivariate analysis
Opacity
People and Places
Performance evaluation
Pinholes
Polls & surveys
Population
Prevalence
Public health
Risk factors
Rural areas
Sample size
Social Sciences
Surveys
Urban areas
Vision disorders
Vision, Low - etiology
Visual acuity
Visual impairment
Visually Impaired Persons
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Summary:Avoidable blindness is a significant public health problem in India. Nationally representative RAAB surveys (Rapid Assessment of Avoidable Blindness) are being conducted periodically in the country to know the current status of blindness in the country. The current study describes the findings from the RAAB survey conducted during 2015-19 in India. A cross-sectional, population-based survey was conducted across the entire country among persons aged 50 years and above using RAAB version 6 methodology. Presenting and pinhole visual acuity was recorded followed by lens examination using a torchlight. In order to estimate the prevalence of blindness and visual impairment in overall population in India, district weights were assigned to each of the 31 surveyed districts and the prevalence was standardized using the RAAB software. The overall weighted, age-gender standardized, prevalence of blindness (presenting visual acuity
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0271736