1. Number of people with glaucoma worldwide;Quigley;Br J Ophthalmol,1996
2. Racial differences in the cause-specific prevalence of blindness in east Baltimore;Sommer;N Engl J Med,1991
3. Statistics on Blindness in the Model Reporting Area 1969–70;Kahn,1973
4. Models of open-angle glaucoma prevalence and incidence in the United States;Quigley;Invest Ophthalmol Vis Sci,1997
5. Prevalence and causes of visual impairment in the Barbados Eye Study;Hyman;Ophthalmology,2001