To qualify for Medicaid based on blindness, you must meet a specific level of visual impairment, such as a visual acuity of no better than 20/200 in your better eye after correction, or a visual field of 20 degrees or less. In addition to this medical criterion, you must also meet general Medicaid eligibility requirements for your state, which typically include being a resident, a U.S. citizen or qualified alien, and meeting income and asset limits.