Source Lalit Dandona, Rakhi Dandona

BIOMMEDCENTRAL

What is the global burden of visual impairment?

Abstract

This article gives in detail about the estimation done by the World Health Organization (WHO) in the population with visual impairment less severe than blindness. This estimate is quoted widely, but because it is based on definitions using best-corrected visual acuity, uncorrected refractive error as a cause of visual impairment is excluded. This article also gives in detail the cause of visual impairment due to refractive errors.

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