Etiology of Visual Impairment And Blindness and Demographic Profile of Affected Individuals

Indian Journal of Applied Basic Medical Sciences
Year: 2019, Volume: 21(A), Issue. (1), January
First page: (265) Last page: (283)
Online ISSN: 2249-7935
Print ISSN: 0975-8917

Etiology of Visual Impairment And Blindness and Demographic Profile of Affected Individuals
Sonal Kochhar Suri1, Bodhraj Dhawan2, Rhutuja Deo3, Anmol Kochhar4*
1Junior resident, 2-4Assistant professor, Dept. of Ophthalmology, NKP Salve Institute of Medical Sciences & Research Centre Digdoh hills, Hingna Road Nagpur, Maharashtra- 440019
Corresponding author email id:

Online Published on 02-Jan-2019


Eye diseases and low vision are the most significant health and socioeconomic risks indeveloping countries like India. Globally, 253 million people are visually impaired, of these 36 million are blind and 217 million have moderate to severe visual impairment. With population growth and increasing life expectancy, the magnitude of blindness is expected to increase further.Objectives: To study the demographic profile of individuals with visual impairment and blindness and its causes in adults aged 50 years and above in a district of Central India.Material and methods: Cluster sampling was employed from November 2015 to November 2017 to randomly select 3000 individuals aged 50 years or more in 30 clusters from a district of Central India. Demographic details of individuals were noted. Visual assessment was done usingETDRS chart in full day light. Ophthalmic examination was done to detect the cause of visual impairment and blindness.Result and discussion: Mean age of study population was 62.3 + 7.9 years. There were 48.9% males and 51.1% females. Visual impairment was seen in 17.4% individuals and blindness was noted in 3.5% individuals. Cataract was the cause of visual impairment in 18.57%, uncorrected refractive error in 4.17%, posterior segment disorders in 1.84% and glaucoma in 1.40% individuals.Conclusion: Visual impairment contributes to a significant health problem in rural population in Central India. Cataract was found to be the principal cause of visual impairment followed by uncorrected refractive error, posterior segment disorders and glaucoma.


visual impairment, blindness, cataract

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