Today it is obvious that eye-protection is something that all professional athletes are aware of. All sports require certain articles of either equipment or costume, but only some few involve compulsory eye-wear, such as ski goggles for skiing or face shields for contact sports such as baseball, football or hockey. In paint-ball arenas players are required to wear polycarbonate shields at all times and are taken out of the game if they remove them. Yearly reports from Prevent Blindness America state that atleast forty thousand eye- injuries occur that are specifically sports related.