Prevalence and Incidence of Eye conditions


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About prevalence and incidence statistics: The term 'prevalence' of Eye conditions usually refers to the estimated population of people who are managing Eye conditions at any given time. The term 'incidence' of Eye conditions refers to the annual diagnosis rate, or the number of new cases of Eye conditions diagnosed each year. Hence, these two statistics types can differ: a short-lived disease like flu can have high annual incidence but low prevalence, but a life-long disease like diabetes has a low annual incidence but high prevalence. For more information see about prevalence and incidence statistics.

Prevelance statistics about Eye conditions: The following statistics relate to the prevalence of Eye conditions:

  • 20.4 million noninstitutionalised adults had vision problems in the US 2001 (Summary Health Statistics for US Adults, National Health Interview Survey, 1999 and 2001, NCHS, CDC)
  • 10% of noninstitutionalised adults had vision problems in the US 2001 (Summary Health Statistics for US Adults, National Health Interview Survey, 1999 and 2001, NCHS, CDC)
  • 1,100,000 people are legally blind in the US (Research to Prevent Blindness, NISE, NSF)
  • 42,000,000 people are blind worldwide (Research to Prevent Blindness, NISE, NSF)
  • 97% of all blindness results from common eye diseases in the US (Research to Prevent Blindness, NISE, NSF)
  • 100,000,000 people have trouble seeing without corrective lenses in the US (Research to Prevent Blindness, NISE, NSF)
  • 80,000 people suffer from potentially blinding eye diseases in the US (Research to Prevent Blindness, NISE, NSF)
  • 14,000,000 people have severe visual conditions that cannot be fixed by glasses in the US (Research to Prevent Blindness, NISE, NSF)
  • 2,800,000 people are visually handicapped due to colour blindness in the US (Research to Prevent Blindness, NISE, NSF)

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