Visual impairment and blindness in rural central India

• Verfasst von: Nangia, Vinay [VerfasserIn]
• Verfasst von: Jonas, Jost B. [VerfasserIn]
• Titel: Visual impairment and blindness in rural central India
• Titelzusatz: the Central India Eye and medical study
• Verf.angabe: Vinay Nangia, Jost B. Jonas, Rajesh Gupta, Anshu Khare, Ajit Sinha
• Jahr: 2013
• Jahr des Originals: 2012
• Umfang: 4 S.
• Fussnoten: First published: 08 June 2012 ; Gesehen am 05.09.2018
• Titel Quelle: Enthalten in: Acta ophthalmologica
• Ort Quelle: Oxford : Blackwell, 2008
• Jahr Quelle: 2013
• Band/Heft Quelle: 91(2013), 5, Seite 483-486
• ISSN Quelle: 1755-3768
• DOI: doi:10.1111/j.1755-3768.2012.02447.x
• Datenträger: Online-Ressource
• Sprache: eng
• Bibliogr. Hinweis: Erscheint auch als : Druck-Ausgabe: Visual impairment and blindness in rural central India. - 2013
• Sach-SW: blindness
• Sach-SW: Central India Eye and Medical Study
• Sach-SW: epidemiology
• Sach-SW: India
• Sach-SW: population-based study
• Sach-SW: visual acuity
• Sach-SW: visual impairment
• K10plus-PPN: 1580680887

Abstract

Abstract. Purpose: The aim of the study was to investigate prevalence of visual impairment in rural central India. Methods: The population-based Central India Eye and Medical Study included 4711 subjects with an age of 30+ years. Presenting visual acuity (PRVA) and best-corrected visual acuity (BCVA) were recorded. Visual impairment and blindness were defined using the World Health Organization (WHO) standard and United States (US) standard. Results: On the basis of PRVA and using WHO and US standards, 1049 [22%; 95% confidence interval (CI): 21.1, 23.5] subjects and 1290 (27%; 95% CI: 26.1, 28.7) subjects, respectively, were visually impaired, and 35 (0.7%; 95% CI: 0.5, 1.0) subjects and 116 (2.5%; 95% CI: 2.0, 2.9) subjects, respectively, were blind. The corresponding age-standardized prevalence figures were 17%, 21%, 0.5% and 2%, respectively. Using best-correcting glasses could eliminate PRVA-visual impairment/blindness in 729 subjects (67% of all subjects with visual impairment/blindness). On the basis of BCVA and using WHO and US standards, 333 (7%; 95% CI: 6.3, 7.8) subjects and 473 (10%; 95% CI: 9.2, 10.9) subjects, respectively, had visual impairment, and 22 (0.5%; 95% CI: 0.3, 0.7) and 31 (0.7%; 95% CI: 0.4, 0.9) subjects, respectively, were blind. Corresponding age-standardized prevalence figures were 5%, 8%, 0.4% and 0.5%, respectively. Causes for BCVA-visual impairment/blindness were cataract (75%), postoperative posterior capsular opacification (4%), surgical complications (2%), corneal opacifications (2%), age-related macular degeneration (2%), other macular diseases (1%), and glaucoma (1%). Conclusions: Age-standardized prevalence of PRVA-visual impairment/blindness (WHO definition) in the adult population of rural central India was 17%. Most frequent cause was undercorrected refractive error. Supply of correct glasses is the most efficient way to improve vision in the rural central India.