Recent estimations, made using data from 6 US population-based studies, have revealed that the number of individuals with vision impairment and the number of individuals with blindness continue to increase in the United States, related to the aging of its population.1 In 2015, approximately 1.0 million people were blind and another 3.2 million people had impaired vision. By 2050, these numbers will be 2.0 million and 7.0 million, respectively. This report does not address diseases that affect the vision, but the National Eye Institute has identified cataract as the leading cause of nonrefractive vision loss in the United States.2 These observations establish the high importance of the work by Tseng et al,3 which associated cataract surgery with reduced overall and pathology-specific mortality.
Smith JR. Association of Cataract Surgery With Decreased Mortality Among US Women. JAMA Ophthalmol. 2018;136(1):10–11. doi:10.1001/jamaophthalmol.2017.4581
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