The Global Burden of Vision Impairment

An overview based on 2015 data

Rupert Bourne - Vision Loss Expert Group

Serge Resnikoff

Peter Ackland - IAPB

Chapter-1-GBVL-The-World-Graphic

CHANGE IN PREVALENCE OF VISUAL IMPAIRMENT

Chapter-1-The-World-Prevalence-Change

55% OF VISUALLY IMPAIRED PEOPLE ARE WOMEN

89% OF VISUALLY IMPAIRED PEOPLE LIVE IN LOW- AND MIDDLE-INCOME COUNTRIES

Chapter-1-The-World-Income

Chapter-1-GBVL-1.1-Billion

GLOBAL CAUSES OF VISUAL IMPAIRMENT

  • AMD 4.1%

  • Cataract 25.8%

  • Corneal Opacity 1.7%

  • Diabetic Retinopathy 1.2%

  • Glaucoma 2.8%

  • Uncorrected Refractive Error 49.0%

  • Trachoma 0.8%

  • Other 14.7%

Chapter-1-The-World-Avoidable

The number of visually impaired, the percentages for women and for those living in low and middle income countries, and the change in prevalence, all relate to distance-vision impairment. MSVI = the number with severe or moderate visual impairment. In order to enable comparisons over time, the age-standardised prevalence (all ages) is shown. An ultra-conservative definition of avoidable blindness is shown based upon the prevalence of Cataract, Refractive Error and Trachoma only. Other conditions are at least partially avoidable.
The latest estimates for 2015 produced by the Vision Loss Expert Group and published in the Lancet  

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