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Moncef Khairallah, Rim Kahloun, Jost B Jonas, Jill Keeffe, Kovin Shunmugam Naidoo, Serge Resnikoff, Hugh R Taylor, Rupert Bourne, Vision Loss Expert Group; Prevalence and Causes of Vision Loss in North Africa and the Middle East: 1990-2010.. Invest. Ophthalmol. Vis. Sci. 2014;55(13):4159.
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© ARVO (1962-2015); The Authors (2016-present)
To examine vision impairment and its changes from 1990 to 2010 in North Africa and the Middle East (NAME).
Based on a systematic review of medical literature, we examined prevalence and causes of moderate and severe vision impairment (MSVI; presenting visual acuity <6/18, ≥3/60) and blindness (presenting visual acuity <3/60).
In NAME, the age-standardized prevalence of blindness decreased from 2.1% to 1.1% and MSVI from 7.1% to 4.5%. In 2010, 3.119 million people were blind, and 13.700 million had MSVI. Women were generally more often affected than men. Main causes of blindness were cataract, uncorrected refractive error, macular degeneration, and glaucoma. Main causes of MSVI were cataract and uncorrected refractive errors. Proportions of blindness and MSVI from trachoma significantly decreased.
Although the absolute numbers of people with blindness and MSVI increased from 1990 to 2010, the overall age-specific prevalences of blindness and MSVI and the prevalences in people aged 50 years decreased significantly. Cataract and uncorrected refractive error were the major causes of blindness and MSVI.
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