Silver Book Fact
An estimated 4.1 million Americans currently have diabetic retinopathy. That number is expected to grow to 7.2 million by 2020.
Kempen J, O'Colmain B, Leske M, et al. The Prevalence of Diabetic Retinopathy Among Adults in the United States. Archives of Ophthalmology. 2004; 122(4): 552-63. http://archopht.jamanetwork.com/article.aspx?articleid=416212