Silver Book Fact
The total annual loss for the 3.7 million people in the U.S. who are visually impaired or blind is estimated at more than 209,000 quality-adjusted life-years.
Frick K, Gower E, Kempen J, Wolff J. Economic Impact of Visual Impairment and Blindness in the United States. Archives of Ophthalmology. 2007; 125(4): 544-50. http://archopht.ama-assn.org/cgi/content/abstract/125/4/544