Table 1. Cataract Prevalence Sources.
|Author||Date of Publication||Title||Date of Data Collection||Data Source||Sample Size||Prevalence Data Stratified by:|
|Maa AY, Evans C, et al.||2013||Veteran Eye Disease After Eligibility Reform: Prevalence and Characteristics||January 2008–February 2008||Atlanta VA Medical Center Chart Review||658||Not stratified by demographic variables|
|Richter GM, Chung J, et al.||2009||Prevalence of Visually Significant Cataract and Factors Associated with Unmet Need for Cataract Surgery: Los Angeles Latino Eye Study||2009||LALES||6,142||Age, Sex, Race/Ethnicity|
|Broman AT, Hafiz G, Munoz B, et al.||2005||Cataract and Barriers to Cataract Surgery in a US Hispanic Population||1997–1999||Proyecto VER||4,774||Age, Sex, Race/Ethnicity|
|Mansberger SL, Romero FC, et al.||2005||Causes of Visual Impairment and Common Eye Problems in Northwest American Indians and Alaska Natives||Unknown||Northwest AIAN||288||Race|
|Congdon, N, Vingerling, J.R., Eye Diseases Prevalence Research Group||2004||Prevalence of Cataract and Pseudophakia/Aphakia Among Adults in the United States||1988–2000||EDPRG||Various||Age, Sex, Race|
|Varma R, Torres M, Los Angeles Eye Study Group||2004||Prevalence of Lens Opacities in Latinos||2000||LALES||6,142||Age, Sex|
|Haronian E, Wheeler NC||1993||Prevalence of Eye Disorders Among the Elderly in Los Angeles||1982–1990||UCLA MEC||431||Age, Sex|
|Klein B, Klein R, Linton KLP||1992||Prevalence of Age-Related Lens Opacities in a Population. The Beaver Dam Eye Study||1988–1990||BDES||4,926||Age, Sex|
Overall Cataract Prevalence Rates
Figure 1 below shows the estimated prevalence rate for cataract from the seven studies reviewed in this section. Prevalence rates ranged from 2.8% in Proyecto VER to 29.5% in UCLA MEC. The high degree of variation among the results in this figure is likely due to in part to methodological, disease definition and population differences among the studies. The figure is intended to illustrate the range of published prevalence values; direct comparison of the studies is impossible without considering the underlying differences in the studies. Detailed results from each individual study are available in the full report Published Examination-based Prevalence of Major Eye Disorders.