Prevelence and causes of visual impairment and blindness in older adults in an area of India with a high cataract surgical rate.

Ophthalmic Epidemiology
Gudlavalleti V S MurthyLeon B Ellwein

Abstract

The cataract surgical rate (CSR) in Gujarat, India is reported to be above 10,000 per million population. This study was conducted to investigate the prevalence and causes of vision impairment/blindness among older adults in a high CSR area. Geographically defined cluster sampling was used in randomly selecting persons >or= 50 years of age in Navsari district. Subjects in 35 study clusters were enumerated and invited for measurement of presenting and best-corrected visual acuity and an ocular examination. The principal cause was identified for eyes with presenting visual acuity < 20/32. A total of 5158 eligible persons were enumerated and 4738 (91.9%) examined. Prevalence of presenting visual impairment < 20/63 to 20/200 in the better eye was 29.3% (95% confidence interval [CI]: 27.5-31.2) and 13.5% (95% CI: 12.0-14.9) with best correction. The prevalence of presenting bilateral blindness (< 20/200) was 6.9% (95% CI: 5.7-8.1), and 3.1% (95% CI: 2.5-3.7) with best correction. Presenting and best-corrected blindness were both associated with older age and illiteracy; gender and rural/urban residence were not significant. Cataract in one or both eyes was the main cause of bilateral blindness (82.6%), followed by retinal disorders ...Continue Reading

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Citations

Feb 15, 2013·PloS One·Srinivas MarmamulaRohit C Khanna
Sep 5, 2012·Indian Journal of Ophthalmology·Gudlavalleti V S MurthyHira B Pant
Apr 27, 2013·Indian Journal of Ophthalmology·Lingam VijayaSathyamangalam Ve Ramesh
Aug 5, 2014·Journal of Ophthalmology·Fei YuanLei Li
Apr 29, 2015·PloS One·Noopur GuptaAmit Bhardwaj
Nov 15, 2014·The British Journal of Ophthalmology·Noopur GuptaKalaivani Mani
Dec 6, 2014·Archivos de la Sociedad Española de Oftalmología·M J García-MartínJ M Gallardo
Nov 26, 2010·Current Opinion in Ophthalmology·Gullapalli N RaoAbhishek Payal
Dec 3, 2014·Molecular and Cellular Biochemistry·Yinghong JiYi Lu
Jan 21, 2020·Indian Journal of Ophthalmology·Neha Misra, Rohit C Khanna
Sep 9, 2016·Medical Science Monitor : International Medical Journal of Experimental and Clinical Research·Limin QinYi Fei Huang
May 18, 2021·Telemedicine Journal and E-health : the Official Journal of the American Telemedicine Association·Rajiv KhandekarDeepak P Edward
Oct 2, 2021·The British Journal of Ophthalmology·Chenqi LuoXiangjun Chen
Sep 29, 2021·Indian Journal of Ophthalmology·Madhurima KaushikTariq Syed Qureshi

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