During his speech (video below), Beck told the audience, "I can't focus my eyes."
Taking a shot at health care reform, Beck said, "I went to the best doctor I could find, while I could still go to the best doctor I can find."
Beck, 46, says he has been diagnosed with macular dystrophy, and joked that the doctor told him, "You could go blind in the next year . . . or you might not."