World health organization

10 facts about blindness and visual impairment

View of a light box being used for a vision test
WHO/Chris de Bode

Up to 80% of visual impairment and blindness in adults is preventable or treatable

In lower- and lower-middle-income countries the majority of causes of visual impairment are preventable or curable. To achieve a substantial reduction, the general public needs to be educated in preventive measures. The health care system needs to include eye care services to achieve a universal health coverage.

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