Over the study period, there were a total of 2173 eyes assessed using Lenstar optical biometry. Four hundred and fifty-six eyes were excluded because of missing ethnicity information, self-reported biracial ancestry, or ethnicity other than the 4 major groups included in this study; 246 were excluded because of their history of glaucoma; and 110 were excluded because of history of surgery or other eye diseases. After these exclusions, a total of 807 patients and 1361 eyes were included in the study. There were 729 White, 386 Asian, 141 Hispanic and 105 African-American eyes. There were 60.3% women and the mean age of the sample was 69.2 ± 12.7 years. Distribution of laterality was 49.7% right eyes.