Silver Book Fact
An estimated 83,563 Americans ages 40-49 have vision impairment. That grows to 297,754 at ages 75-79 and close to 2 million for ages 80+.
Prevent Blindness America. Vision Problems in the U.S.: Prevalence of adult vision impairment and age-related eye disease in the U.S.. Chicago: IL: Prevent Blindness America; 2012. http://www.visionproblemsus.org/