Polycarbonate lenses should be prescribed for wear by participants of contact sports during athletic activities. Frames that meet the specifications of American Society for Testing and Materials F803-88a should be prescribed for sports in which there is a significant risk of eye injury. Because of the high-energy collisions in some sports, helmets are also essential for both face and eye protection. Functionally one-eyed athletes should not participate in sports in which adequate eye protection is not available. It is inadvisable to recommend radial keratotomy to athletes who will participate in contact sports.