Join a powerful, unprecedented alliance for better eye health for all.Join IAPB
This study updates global and regional estimates of causes of moderate and severe vision impairment and blindness through 2020. The Vision Loss Exper Group (VLEG) examined age-adjusted and sex-adjusted differences in the contribution of these causes to vision impairment, with a focus on older age groups. They incorporated studies from an updated systematic review for a total of 376 cause-specific sources.
This update also allowed VLEG to assess the World Health Assembly 2013 Global Action Plan (WHA GAP) target to reduce avoidable vision impairment, which was specifically defined as a reduction in moderate or worse vision impairment from undercorrected refractive error and cataract by 25% between 2010 and 2019.
VLEG found that in adults aged 50 years and older there was no change in the crude prevalence of avoidable vision impairment between 2010 and 2019, and case numbers increased.
Select this link to access the full study.
The Vision Loss Expert Group (VLEG) populates and curates the Global Vision Database, a continuously updated, comprehensive, online database storing worldwide ophthalmic epidemiological information. Learn more about VLEG.