Your vision is closely tied to how well you move -- your flexibility, strength, pain tolerance and so on. This simple exercise could help you strengthen your eye muscles and improve your movement at the same time.
The video is from Max Shank, an author, coach and owner of Ambition Athletics (who also taught us how to fix our computer hunch). In the video, Max demonstrates the technique of throwing a tennis ball with letters on it at a wall and saying the letter facing you before you catch the ball.
Just being able to see an eye chart isn't the whole equation. You have to strengthen the muscles inside and out of your eye. The letter ball, shown in the video above is an awesome way to kill two birds with one stone. The muscles inside help you change focus of your near-far vision, and the outside muscles help your eyes track the ball as it comes at you in different positions.
How's your hand eye coordination?