Effective coverage of refractive error care

A simple pair of spectacles can transform lives for hundreds of millions — yet glasses remain out of reach for far too many. Best viewed on desktop — scroll slowly to explore the full data story.

Back to top

Explore topics

Magnitude of sight loss
Data Story

Magnitude of sight loss

Discover how sight loss affects over a billion people worldwide—and why the number is still rising.
Causes of sight loss
Data Story

Causes of sight loss

The leading causes of sight loss are simple to treat—discover the conditions driving the global burden of sight loss.
Gender
Data Story

Gender

Uncover the persistent gender gap in eye health, with women bearing a disproportionate burden of sight loss.

Featured news

Lao PDR Launches ECSAT Report to Guide National Eye Health Strategy 2026–2030

Lao PDR releases Eye Care Situation Analysis Tool report, driving evidence-based action toward universal eye care.
Written by
Mayinuer Yusufu

Vision Crisis in Vietnamese Classrooms: Study Reveals Nearly 40% of Students Affected by Refractive Errors 

A comprehensive meta-analysis reveals that 37.6% of Vietnamese schoolchildren have refractive errors, with myopia affecting an estimated 6 million children and contributing to Asia’s growing vision health crisis.
Written by
Ayesha Siddiqui

View sight loss data by countries

Explore and understand how sight loss affects different parts of the world and the impact that it has.
View by country
Two young boys wearing decorated heart-shaped glasses laughing and hugging during an eye health event.