Silver Book Fact
Of the study participants in the Los Angeles Latino Eye Study (LALES) who had open-angle glaucoma, 75% were previously undiagnosed.
Varma R, Ying-Lai M, Francis B, Bao-Thu Nguyen B, et al. Prevalence of Open-Angle Glaucoma and Ocular Hypertension in Latinos: The Los Angeles Latino Eye Study. Ophthalmol. 2004; 111(8): 1439-48. http://www.aaojournal.org/article/S0161-6420(04)00315-X/fulltext