How Many People In The World Are Blind, And Why?

38 million people globally are blind.  A further 110 million are visually impaired, with many of those at great risk for becoming blind.  Here are the main causes of blindness:

• cataract
• trachoma
• glaucoma
• onchocerciasis
• xerophthalmia
• diabetic retinopathy
• age-related macular degeneration

Trends, particularly the aging global population, indicate that the incidences of blind and low vision are likely to increase substantially in coming decades.

Global data on blindness

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