As of 2012, prescription eyeglasses are covered by Medicaid in 41 states, according to the Kaiser Family Foundation. Each state's plan varies by co-payment requirement.
The nine states that don't cover prescription eyeglasses are mainly divided between the Northeast and the South. In addition, the Kaiser Family Foundation records data for U.S. territories that provide coverage, such as the Northern Mariana Islands, and those that do not cover prescription eyeglasses, such as Puerto Rico. The 41 states that provide coverage for prescription eyeglasses place limits either by a yearly or operational requirement. Overall, Medicaid provides health coverage for 60 million Americans, with some individuals having mandatory eligibility.