Prevalence of Glaucoma in the United States: The 2005–2008 National Health and Nutrition Examination Survey

Abstract

The prevalence of glaucoma based on optic nerve fundus photography assessment in the general US population 40 years of age and older was 2.1%. Approximately half of glaucoma cases were previously undiagnosed. Studies to determine whether and how to identify undiagnosed glaucoma are an important next step.