WHO definitions of vision loss severity:
"The International Classification of Diseases 11 (2018) classifies vision impairment into two groups, distance and near presenting vision impairment.
Distance vision impairment:
Mild – presenting visual acuity worse than 6/12
Moderate – presenting visual acuity worse than 6/18
Severe – presenting visual acuity worse than 6/60
Blindness – presenting visual acuity worse than 3/60
Near vision impairment:
Presenting near visual acuity worse than N6 or M.08 with existing correction."
Citation formats
Vision loss in Europe in 2020, by severity and country
In 2020, Russia had the highest prevalence of vision loss in Europe. In Russia, *** percent of the population had moderate-severe vision loss, while *** percent of the population is classified as blind. Over eight percent of Belarussians had near vision impairment that year, while *** percent of Ukrainians had the same level of impairment. The data shows that there is a higher level of vision impairments in Eastern European countries, compared to countries in Western Europe.
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IAPB. (December 1, 2020). Share of individuals with vision loss in selected European countries in 2020, by severity [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 22, 2026, from /statistics/1200735/vision-loss-by-severity-in-europe/
IAPB. "Share of individuals with vision loss in selected European countries in 2020, by severity." Chart. December 1, 2020. ÌÇÐÄÆÆ½â°æ. Accessed July 22, 2026. /statistics/1200735/vision-loss-by-severity-in-europe/
IAPB. (2020). Share of individuals with vision loss in selected European countries in 2020, by severity. ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 22, 2026. /statistics/1200735/vision-loss-by-severity-in-europe/
IAPB. "Share of Individuals with Vision Loss in Selected European Countries in 2020, by Severity." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 1 Dec 2020, /statistics/1200735/vision-loss-by-severity-in-europe/
IAPB, Share of individuals with vision loss in selected European countries in 2020, by severity ÌÇÐÄÆÆ½â°æ, /statistics/1200735/vision-loss-by-severity-in-europe/ (last visited July 22, 2026)
Share of individuals with vision loss in selected European countries in 2020, by severity [Graph], IAPB, December 1, 2020. [Online]. Available: /statistics/1200735/vision-loss-by-severity-in-europe/