The baseball hurtles toward the batter, and he must decide from its rotation whether its a fastball worth a swing or a slider about to drop out of the strike zone.
Running full speed, the wide receiver tracks both the football flying through the air and the defensive back on his heels. Golfers must rapidly shift visual focus in order to drive the ball at their feet toward a green in the distance.
Many athletes need excellent vision to perform well in their sports, and now many are adding something new to their practice regimens: vision training. The idea has been around for years, but only recently have studies hinted that it might really work – that it might be possible to train yourself to see better without resorting to glasses or surgery.