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

World map of blindness38 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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