Visual impairment in the U.S. and its relationship with demographic factors, diabetes, and other systemic risk factors in NHANES 1999-2000 and NHANES 2005-2008
Fang Ko, MD1, Susan Vitale, PhD, MHS2, Chiu-Fang Chou, Dr PH3, Mary Frances Cotch, PhD4, Jinan B. Saaddine, MD, MPH3 and David Friedman, MD, MPh, PhD5
(1)Johns Hopkins University School of Medicine, Baltimore, MD, (2)National Eye Institute, Bethesda, MD, (3)Centers for Disease Control and Prevention, Atlanta, GA, (4)National Institutes of Health, Bethesda, MD, (5)Johns Hopkins University School of Medicine, Baltimore
(1)Johns Hopkins University School of Medicine, Baltimore, MD, (2)National Eye Institute, Bethesda, MD, (3)Centers for Disease Control and Prevention, Atlanta, GA, (4)National Institutes of Health, Bethesda, MD, (5)Johns Hopkins University School of Medicine, Baltimore