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Global data on visual impairment in the year 2002.

This paper presents estimates of the prevalence of visual impairment and its causes in 2002, based on the best available evidence derived from recent studies. Estimates were determined from data on low vision and blindness as defined in the International statistical classification of diseases, injur...

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Published in:Bulletin of the World Health Organization Vol. 82; no. 11; pp. 844 - 852
Main Authors: Resnikoff S, Pascolini D, Etya'aale D, Kocur I, Pararajasegaram R, Pokharel GP, Mariotti SP
Format: Journal Article
Published: World Health Organization Nov2004
Online Access:View this record in EBSCOhost
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        atl: Global data on visual impairment in the year 2002.
      aug:
        au:
          Resnikoff S
          Pascolini D
          Etya'aale D
          Kocur I
          Pararajasegaram R
          Pokharel GP
          Mariotti SP
      sug:
        subj:
          Persons with Disabilities Statistics and Numerical Data
          Vision Disorders Epidemiology
          World Health
          Adolescence
          Adult
          Causal Attribution
          Demography
          Developing Countries
          Persons with Disabilities Classification
          Middle Age
          Prevalence
          Risk Factors
          Vision Disorders Classification
          Vision Disorders Etiology
          Adolescent: 13-18 years
          Adult: 19-44 years
          Middle Aged: 45-64 years
      ab: This paper presents estimates of the prevalence of visual impairment and its causes in 2002, based on the best available evidence derived from recent studies. Estimates were determined from data on low vision and blindness as defined in the International statistical classification of diseases, injuries and causes of death, 10th revision. The number of people with visual impairment worldwide in 2002 was in excess of 161 million, of whom about 37 million were blind. The burden of visual impairment is not distributed uniformly throughout the world: the least developed regions carry the largest share. Visual impairment is also unequally distributed across age groups, being largely confined to adults 50 years of age and older. A distribution imbalance is also found with regard to gender throughout the world: females have a significantly higher risk of having visual impairment than males. Notwithstanding the progress in surgical intervention that has been made in many countries over the last few decades, cataract remains the leading cause of visual impairment in all regions of the world, except in the most developed countries. Other major causes of visual impairment are, in order of importance, glaucoma, age-related macular degeneration, diabetic retinopathy and trachoma.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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