Without intervention, the number of individuals with blindness mightreach 76 million by 2020 because of a number of factors, primarily the rapidaging of populations in most countries.
1 Mostof them have lost their sight to diseases that are treatable or preventable.Eighty percent of them live in the lesser-developed world in countries wherechronic economic deprivation is exacerbated by the added challenge of failingvision.
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