Prevalence and causes of blindness and vision impairment: magnitude, temporal trends and projections in South and Central Asia. Issue 7 (8th November 2018)

• Record Type: Journal Article
• Authors: Nangia, Vinay; Jonas, Jost B; George, Ronnie; Lingam, Vijaya; Ellwein, Leon; Cicinelli, Maria Vittoria; Das, Aditi; Flaxman, Seth R; Keeffe, Jill E; Kempen, John H; Leasher, Janet; Limburg, Hans; Naidoo, Kovin; Pesudovs, Konrad; Resnikoff, Serge; Silvester, Alexander J; Tahhan, Nina; Taylor, Hugh R; Wong, Tien Y; Bourne, Rupert R A
• Other Names: author non-byline.; Bourne Rupert author non-byline.; Ackland Peter author non-byline.; Arditi Aries author non-byline.; barkana yaniv author non-byline.; Bozkurt Banu author non-byline.; Braithwaite Tasanee author non-byline.; Bron Alain author non-byline.; Budenz Donald author non-byline.; Cai Feng author non-byline.; Casson Robert author non-byline.; Chakravarthy Usha author non-byline.; Choi Jaewan author non-byline.; Cicinelli Maria Vittoria author non-byline.; Congdon Nathan author non-byline.; Dana Reza author non-byline.; Dandona Rakhi author non-byline.; Dandona Lalit author non-byline.; Das Aditi author non-byline.; Dekaris Iva author non-byline.; Del Monte Monte author non-byline.; deva jenny author non-byline.; Dirani Mohamed author non-byline.; Dreer Laura author non-byline.; Ellwein Leon author non-byline.; Frazier Marcela author non-byline.; Frick Kevin author non-byline.; Friedman David author non-byline.; Furtado Joao author non-byline.; Gao Hua author non-byline.; Gazzard Andrew author non-byline.; George Ronnie author non-byline.; Gichuhi Stephen author non-byline.; Gonzalez Victor author non-byline.; Hammond Billy author non-byline.; Hartnett Mary Elizabeth author non-byline.; He Minguang author non-byline.; Hejtmancik James author non-byline.; Hirai Flavio author non-byline.; Huang John author non-byline.; Ingram April author non-byline.; Javitt Jonathan author non-byline.; Jonas Jost author non-byline.; Joslin Charlotte author non-byline.; Keeffe Jill author non-byline.; Kempen John author non-byline.; Khairallah Moncef author non-byline.; Khanna Rohit author non-byline.; Kim Judy author non-byline.; Lambrou George author non-byline.; Lansingh Van Charles author non-byline.; Lanzetta Paolo author non-byline.; Leasher Janet author non-byline.; Lim Jennifer author non-byline.; Limburg Hans author non-byline.; Mansour Kaweh author non-byline.; Mathew Anu author non-byline.; Morse Alan author non-byline.; Munoz Beatriz author non-byline.; Musch David author non-byline.; Naidoo Kovin author non-byline.; Nangia Vinay author non-byline.; Palaicu Maria author non-byline.; Parodi Maurizio Battaglia author non-byline.; Pena Fernando Yaacov author non-byline.; Pesudovs Konrad author non-byline.; Peto Tunde author non-byline.; Quigley Harry author non-byline.; Raju Murugesan author non-byline.; Ramulu Pradeep author non-byline.; Resnikof Serge author non-byline.; Reza Dana author non-byline.; Robin Alan author non-byline.; Rossetti Luca author non-byline.; Saaddine Jinan author non-byline.; Sandar Mya author non-byline.; Serle Janet author non-byline.; Shen Tueng author non-byline.; Shetty Rajesh author non-byline.; Sieving Pamela author non-byline.; Silva Juan Carlos author non-byline.; Silvester Alex author non-byline.; Sitorus Rita S author non-byline.; Stambolian Dwight author non-byline.; Stevens Gretchen author non-byline.; Taylor Hugh author non-byline.; Tejedor Jaime author non-byline.; Tielsch James author non-byline.; Topouzis Fotis author non-byline.; Tsilimbaris Miltiadis author non-byline.; van Meurs Jan author non-byline.; Varma Rohit author non-byline.; Virgili Gianni author non-byline.; Volmink Jimmy author non-byline.; Wang Ya Xing author non-byline.; Wang Ning-Li author non-byline.; West Sheila author non-byline.; Wiedemann Peter author non-byline.; Wong Tien author non-byline.; Wormald Richard author non-byline.; Zheng Yingfeng author non-byline.;
• Is Part Of: British journal of ophthalmology. Volume 103:Issue 7(2019)
• Page Start: 871
• Page End: 877
• Publication Date: 2018-11-08
• Subjects: global burden of disease study -- vision loss expert group -- vision loss -- blindness -- vision impairment -- refractive error -- cataract -- glaucoma -- macular degeneration -- epidemiology; Ophthalmology -- Periodicals; 617.7
• DOI: 10.1136/bjophthalmol-2018-312292
• Languages: English
• ISSNs: 0007-1161

Abstract

Abstract : Background: To assess prevalence and causes of vision loss in Central and South Asia. Methods: A systematic review of medical literature assessed the prevalence of blindness (presenting visual acuity<3/60 in the better eye), moderate and severe vision impairment (MSVI; presenting visual acuity <6/18 but ≥3/60) and mild vision impairment (MVI; presenting visual acuity <6/12 and ≥6/18) in Central and South Asia for 1990, 2010, 2015 and 2020. Results: In Central and South Asia combined, age-standardised prevalences of blindness, MSVI and MVI in 2015 were for men and women aged 50+years, 3.72% (80% uncertainty interval (UI): 1.39–6.75) and 4.00% (80% UI: 1.41–7.39), 16.33% (80% UI: 8.55–25.47) and 17.65% (80% UI: 9.00–27.62), 11.70% (80% UI: 4.70–20.32) and 12.25% (80% UI:4.86–21.30), respectively, with a significant decrease in the study period for both gender. In South Asia in 2015, 11.76 million individuals (32.65% of the global blindness figure) were blind and 61.19 million individuals (28.3% of the global total) had MSVI. From 1990 to 2015, cataract (accounting for 36.58% of all cases with blindness in 2015) was the most common cause of blindness, followed by undercorrected refractive error (36.43%), glaucoma (5.81%), age-related macular degeneration (2.44%), corneal diseases (2.43%), diabetic retinopathy (0.16%) and trachoma (0.04%). For MSVI in South Asia 2015, most common causes were undercorrected refractive error (accounting for 66.39% of all cases with MSVI), followed by cataract (23.62%), age-related macular degeneration (1.31%) and glaucoma (1.09%). Conclusions: One-third of the global blind resided in South Asia in 2015, although the age-standardised prevalence of blindness and MSVI decreased significantly between 1990 and 2015.