Despite advances in surgery and early detection, the number of people affected by cataracts has steadily increased from 1990 to 2021 and is expected to continue rising through 2030, according to a new analysis using Global Burden of Disease (GBD) 2021 data.
The study found that while age-standardized disability-adjusted life years (DALYs) due to cataracts have decreased over time, the overall prevalence continues to climb. Researchers observed a slight annual increase in global prevalence and identified significant gender disparities and regional differences in disease burden.
Using the Bayesian Age-Period-Cohort model, projections suggest a slow but steady decline in DALYs over the next decade. The authors stress the need for stronger public health policies and earlier interventions to reduce the growing number of individuals affected by cataracts globally.
Reference
Lin L, Liang Y, Jiang G, et al. Global, regional, and national burden of cataract: A comprehensive analysis and projections from 1990 to 2021. PLoS One. 2025;20(6):e0326263. doi: 10.1371/journal.pone.0326263. PMID: 40549768; PMCID: PMC12185006.
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