This interactive map presents modelled data on sight loss prevalence by country (all ages). The chart reveals significant global disparities, with the highest age-standardised prevalence in South Asia and sub-Saharan Africa.
Explore different measures, filter by gender, and select specific sight loss severity levels using the dropdown menus.

This interactive world map displays sight loss across regions, revealing significant global inequities in eye health, with sub-Saharan Africa and South Asia experiencing the highest burden.
Customise your view using the dropdown filters.

These modelled data provide global and regional estimates of different levels of sight loss (all ages). Despite global age-standardised prevalence remaining stable, the crude prevalence and numbers are increasing. With an ageing and growing population, vision loss remains an urgent and increasingly important public health priority.

Customise your view using the filters or by selecting legend items.

These modelled vision loss data provide global estimates of different levels of vision loss by age, gender and over time. There is a strong association between age and vision loss after the age of 50.

These modelled data provide estimates of different levels of sight loss for males and females (all ages). 1.1 billion people live with sight loss. 90% of sight loss is preventable or treatable.

These modelled sight loss data provide global and regional estimates and projections of different levels of sight loss for each decade (all ages). Hover over chart segments to view data for each level of sight loss.

This chart shows the global distribution of blindness causes based on modelled data from VLEG (global, 2020, all ages). Notably, both cataract and uncorrected refractive errors are highly treatable conditions, highlighting significant opportunities for intervention. Explore the data using the dropdown menus.

This line chart tracks the global estimates of sight loss due to different causes from 1990 to 2020 (all ages). The chart reveals concerning upward trends of numbers affected across all major causes. Notably, the leading causes are avoidable with cost-effective interventions like spectacles and cataract surgery.

This map displays the geographic distribution of sight loss by cause across different regions (all ages). Explore different causes, severity levels, and measures of sight loss using the dropdown menus.

Trachoma is an eye disease caused by bacterial infection and affects approximately 1.9 million people worldwide. The chart reveals that trachoma remains a significant public health concern primarily across Africa, Latin America, and Australia.

Onchocerciasis, or “river blindness”, is caused by a parasitic infection. Symptoms include visual impairment, including permanent blindness. More than 99% of infected people live in Africa. Four Latin American countries have eliminated onchocerciasis so far.

This map shows the density of ophthalmologists per million population across countries, revealing stark global inequities in eye care workforce distribution. High-income regions generally have the highest concentrations of ophthalmologists but many countries have critically low numbers of ophthalmologists relative to population needs.
Hover for the reference for each country.

This world map illustrates the global distribution of optometrists per million population, revealing significant disparities in access to optometric care worldwide. Higher income countries generally display the highest concentrations of optometrists, while much of Africa and parts of Asia show very low densities.

This world map shows the density of allied ophthalmic personnel per million population across countries. Allied personnel play crucial roles in expanding service capacity and are essential for implementing sustainable and comprehensive eye care systems capable of meeting population needs, especially in resource-constrained settings.