Sports vision training procedures.

Eye exercises have been designed to provide an opportunity for athletes to practice the visual skills essential to popular sports activities. These exercises, which may be used at home or in the office, emphasize visual recognition, motor coordination, and concentration. Home exercises that are commonly employed include the Brock string, flip-card exercises, and ball on a string (Marsden ball). Office exercises usually include the use of specialized equipment such as the tachistoscope and the saccadic fixator. Complicators such as plus and minus lenses, yolk prisms, and strobe lights may be employed to enhance concentration while performing the exercise.