Silver Book Fact
Longitudinal study on vision loss in Medicare patients
A longitudinal study that followed Medicare patients found that after 9 years, almost 50% of survivors had developed glaucoma, cataract, or macular degeneration.
Lee P, Feldman Z, Ostermann J, Brown D, et al. Longitudinal Prevalence of Major Eye Diseases. Archives of Ophthalmology. 2003; 121(9): 1303-10. http://archopht.ama-assn.org/cgi/content/abstract/121/9/1303?etoc