World health organization

10 facts about blindness and visual impairment

A mirror reflects a man trying on glasses
WHO/Chris de Bode

Fact 2

An estimated 120 million are visually impaired because of uncorrected refractive errors (near-sightedness, far-sightedness or astigmatism). Almost all of them could have normal vision restored with eyeglasses, contact lenses or refractive surgery.

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