1. Shield's Textbook of Glaucoma,2005
2. Practice guidelines. Preferred practice patterns. Primary angle closure;American Academy of Ophthalmology,2005
3. Practice guidelines. Preferred practice patterns. Primary open-angle glaucoma;American Academy of Ophthalmology,2005
4. Eye Diseases Prevalence Research Group; Causes and prevalence of visual impairment among adults in the United States;Congdon;Arch Ophthalmol,2004
5. Eye Diseases Prevalence Research Group: Prevalence of open-angle glaucoma among adults in the United States;Friedman;Arch Ophthalmol,2004