Magnitude of sight loss

Discover how sight loss affects over a billion people worldwide—and why the number is still rising. Best viewed on desktop — scroll slowly to explore the full data story.

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Bourne, R., Steinmetz, J. D., Flaxman, S., Briant, P. S., Taylor, H. R., Resnikoff, S., … & Tareque, M. I. (2021). Trends in prevalence of blindness and distance and near vision impairment over 30 years: an analysis for the Global Burden of Disease Study. The Lancet global health, 9(2), e130-e143.

Bourne, Rupert RA, et al. “Causes of vision loss worldwide, 1990–2010: a systematic analysis.” The Lancet Global Health 1.6 (2013): e339-e349.

Burton et al., “Lancet Global Health Commission on Global Eye Health: Vision Beyond 2020,” The Lancet Global Health, vol. 9, no. 4, pp. e489–e551, 2021.

Reddy PA, Congdon N, MacKenzie G, et al. Effect of providing near glasses on productivity among rural Indian tea workers with presbyopia (PROSPER): a randomised trial. Lancet Glob Health 2018; 6(9): e1019-e27.

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Effective coverage of refractive error care
Data Story

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.
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.

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View sight loss data by countries

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