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Title: Prevalence and causes of vision loss in sub-Saharan Africa: 1990-2010
Authors: Naidoo, K.
Gichuhi, S.
Basáñez, M.-G.
Flaxman, S.R.
Jonas, J.B.
Keeffe, J.
Leasher, J.L.
Pesudovs, K.
Price, H.
Smith, J.L.
Turner, H.C.
White, R.A.
Wong, T.Y. 
Resnikoff, S.
Taylor, H.R.
Bourne, R.R.A.
Issue Date: 2014
Citation: Naidoo, K., Gichuhi, S., Basáñez, M.-G., Flaxman, S.R., Jonas, J.B., Keeffe, J., Leasher, J.L., Pesudovs, K., Price, H., Smith, J.L., Turner, H.C., White, R.A., Wong, T.Y., Resnikoff, S., Taylor, H.R., Bourne, R.R.A. (2014). Prevalence and causes of vision loss in sub-Saharan Africa: 1990-2010. British Journal of Ophthalmology 98 (5) : 612-617. ScholarBank@NUS Repository.
Abstract: Ai: To estimate the magnitude, temporal trends and subregional variation in the prevalence of blindness, and moderate/severe vision impairment (MSVI) in sub-Saharan Africa. Methods: A systematic review was conducted of published and unpublished population-based surveys as part of the Global Burden of Disease, Risk Factors and Injuries Study 2010. The prevalence of blindness and vision impairment by country and subregion was estimated. Results: In sub-Saharan Africa, 52 studies satisfied the inclusion criteria. The estimated age-standardised prevalence of blindness decreased by 32% from 1.9% (95% CI 1.5% to 2.2%) in 1990 to 1.3% (95% CI 1.1% to 1.5%) in 2010 and MSVI by 25% from 5.3% (95% CI 0.2% to 0.3%) to 4.0% (95% CI 0.2% to 0.3%) over that time. However, there was a 16% increase in the absolute numbers with blindness and a 28% increase in those with MSVI. The major causes of blindness in 2010 were; cataract 35%, other/ unidentified causes 33.1%, refractive error 13.2%, macular degeneration 6.3%, trachoma 5.2%, glaucoma 4.4% and diabetic retinopathy 2.8%. In 2010, agestandardised prevalence of MSVI in Africa was 3.8% (95% CI 3.1% to 4.7%) for men and 4.2% (95% CI 3.6% to 5.3%) for women with subregional variations from 4.1% (95% CI 3.3% to 5.4%) in West Africa to 2.0% (95% CI 1.5% to 3.3%) in southern Africa for men; and 4.7% (95% CI 3.9% to 6.0%) in West Africa to 2.3% (95% CI 1.7% to 3.8%) in southern Africa for women. Conclusions: The age-standardised prevalence of blindness and MSVI decreased substantially from 1990 to 2010, although there was a moderate increase in the absolute numbers with blindness or MSVI. Significant subregional and gender disparities exist.
Source Title: British Journal of Ophthalmology
ISSN: 14682079
DOI: 10.1136/bjophthalmol-2013-304081
Appears in Collections:Staff Publications

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