* Prevalence is age-standardised.
Moderate or severe vision impairment (MSVI) is defined as presenting visual acuity of worse than 6/18 to 3/60 in the better eye.
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Prevalence of moderate/severe vision impairment worldwide 2020, by age and gender
In 2020, almost four percent of women worldwide had moderate or severe vision impairment (MSVI). This was much higher among women 50 years and above.
This statistic shows the prevalence of moderate and severe vision impairment worldwide in 2020, by age group and gender.
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Lancet. (February 16, 2021). Share of people with moderate or severe vision impairment worldwide in 2020, by age and gender* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 25, 2026, from /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/
Lancet. "Share of people with moderate or severe vision impairment worldwide in 2020, by age and gender* ." Chart. February 16, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 25, 2026. /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/
Lancet. (2021). Share of people with moderate or severe vision impairment worldwide in 2020, by age and gender* . ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 25, 2026. /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/
Lancet. "Share of People with Moderate or Severe Vision Impairment Worldwide in 2020, by Age and Gender* ." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 16 Feb 2021, /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/
Lancet, Share of people with moderate or severe vision impairment worldwide in 2020, by age and gender* ÌÇÐÄÆƽâ°æ, /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/ (last visited July 25, 2026)
Share of people with moderate or severe vision impairment worldwide in 2020, by age and gender* [Graph], Lancet, February 16, 2021. [Online]. Available: /statistics/1238083/prevalence-moderate-severe-vision-impairment-by-age-gender/
