Approximately 80,000 Americans are legally blind from glaucoma, which is the 2nd leading cause of blindness in the U.S. -- National Institutes of Health, National Eye Institute; and Prevent Blindness America. "Vision Problems in the U.S., 2002". 2002. Wed, 03 Oct 2007 10:31:31 -0500 http://www.silverbook.org/fact/1241 http://www.silverbook.org/fact/1241 In one study of patients age 48 and older, 17% of the women and 11.1% of the men had dry eye. -- Moss, S.E., R. Klein, and B.E.K. Klein. "Prevalence of and Risk Factors for Dry Eye Syndrome". Archives of Ophthalmology. Vol. 118, No. 9, pp. 1264-8. Wed, 10 Oct 2007 15:13:39 -0500 http://www.silverbook.org/fact/1260 http://www.silverbook.org/fact/1260 An estimated 20.7 million Americans are affected by dry eye. -- Market Scope. Report on the Global Dry Eye Market. St. Louis, MO: Market Scope. 2004. Wed, 10 Oct 2007 15:03:02 -0500 http://www.silverbook.org/fact/1258 http://www.silverbook.org/fact/1258 Chronic dry eye has a clinically important impact on approximately 4.25 million Americans age 50 and older--3.2 million women and 1.05 million men. -- Schaumberg, D.A., and Gardiner M. Schein Od. Smolin and Thoft's The Cornea: Scientific Foundations and Clinical Practice: 4th ed.. Philadelphia, PA: Lippincott Williams & Wilkins. 2004. Wed, 10 Oct 2007 15:17:27 -0500 http://www.silverbook.org/fact/1259 http://www.silverbook.org/fact/1259 More than 38 million Americans age 40 and older are estimated to experience blindness, low vision, or an age-related eye disease. -- Eye Disease Prevalence Research Group. "Blindness". Archives of Ophthalmology. Vol. 122, No. 4, pp. 437-676. Mon, 17 Sep 2007 09:09:15 -0500 http://www.silverbook.org/fact/1112 http://www.silverbook.org/fact/1112 Age-Related eye diseases affect more than 35 million Americans age 40 and older. The most common eye diseases in that age group are macular degeneration, glaucoma, diabetic retinopathy, and cataract. -- Eye Disease Prevalence Research Group. "Blindness". Archives of Ophthalmology. Vol. 122, No. 4, pp. 437-676. Mon, 17 Sep 2007 09:10:28 -0500 http://www.silverbook.org/fact/1113 http://www.silverbook.org/fact/1113 Low vision or blindness affects 1 in 28 Americans over the age of 40-- 3.3 million Americans. -- Congdon, Nathan G., Benita J. O'Colmain, Caroline C.W. Klaver, Ronald Klein, Beatriz Munoz, David S. Friedman, John Kempen, Hugh R. Taylor, Paul Mitchell, and Leslie Hyman. "Causes and Prevalence of Visual Impairment Among Adults in the United States". Archives of Ophthalmology. Vol. 122, No. 4, pp. 477-85. Mon, 17 Sep 2007 09:11:14 -0500 http://www.silverbook.org/fact/1114 http://www.silverbook.org/fact/1114 An estimated 2.4 million Americans over the age of 40 have low vision. -- Congdon, Nathan G., Benita J. O'Colmain, Caroline C.W. Klaver, Ronald Klein, Beatriz Munoz, David S. Friedman, John Kempen, Hugh R. Taylor, Paul Mitchell, and Leslie Hyman. "Causes and Prevalence of Visual Impairment Among Adults in the United States". Archives of Ophthalmology. Vol. 122, No. 4, pp. 477-85. Mon, 17 Sep 2007 09:11:45 -0500 http://www.silverbook.org/fact/1115 http://www.silverbook.org/fact/1115 An estimated 1 million Americans over the age of 40 are legally blind. -- Congdon, Nathan G., Benita J. O'Colmain, Caroline C.W. Klaver, Ronald Klein, Beatriz Munoz, David S. Friedman, John Kempen, Hugh R. Taylor, Paul Mitchell, and Leslie Hyman. "Causes and Prevalence of Visual Impairment Among Adults in the United States". Archives of Ophthalmology. Vol. 122, No. 4, pp. 477-85. Mon, 17 Sep 2007 09:12:21 -0500 http://www.silverbook.org/fact/1116 http://www.silverbook.org/fact/1116 Every 7 minutes, someone in the United States becomes blind or visually impaired. -- American Foundation for the Blind. "Blindness Statistics". Mon, 17 Sep 2007 09:15:14 -0500 http://www.silverbook.org/fact/1117 http://www.silverbook.org/fact/1117