Silver Book Fact
Around 648,000 Americans age 80 and older are blind– 7% of the 80 and older population.
Congdon N, O'Colmain B, Klaver C, Klein R, et al. Causes and Prevalence of Visual Impairment Among Adults in the United States. Archives of Ophthalmology. 2004; 122(4): 477-85. https://pubmed.ncbi.nlm.nih.gov/15078664/