American Optometric Association www.aoa.org

Glaucoma Research Foundation www.glaucoma.org

Medicare www.medicare.gov

National Eye Institute www.nei.nih.gov

National Heart, Lung, & Blood Institute (Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure) www.nhlbi.nih.gov/guidelines/hypertension/index.htm

National Keratoconus Foundation www.nkcf.org