Vision training for athletes evolved from reading therapies developed decades ago to help children with learning disabilities and people with amblyopia ("lazy eye") concentrate and follow lines of text. Unlike exercises designed to strengthen eye muscles, reading therapy works to improve the eye-brain connection. Sports vision therapy takes it one step further. "It's about eye-hand-foot-body-brain coordination," says Dr. Barry Seiller, an ophthalmologist who is Brett Basanez's vision specialist and the director of the Visual Fitness Institute in Vernon Hills, Ill. "Maybe you foul off the ball a lot, or you have all the technical skills but somehow just can't put it together. You go into slumps. You fail in the clutch. All of that, to us, screams 'visual problems."'