The number of people with glaucoma worldwide in 2010 and 2020

To estimate the number of people with open angle (OAG) and angle closure glaucoma (ACG) in 2010 and 2020.

A review of published data with use of prevalence models. Data from population based studies of age specific prevalence of OAG and ACG that satisfied standard definitions were used to construct prevalence models for OAG and ACG by age, sex, and ethnicity, weighting data proportional to sample size of each study. Models were combined with UN world population projections for 2010 and 2020 to derive the estimated number with glaucoma.