Visitor Specs Safety Eyewear. When visitors to your facility are required to wear eye protection when entering certain areas, you want to have something available that is a low cost, comfortable, fits a wide range of face sizes, and is ANSI Z87.1-2015 certified. Wrap-around styles are relatively common, as are glasses that fit over prescription eyewear (OTG's, Over-specs, etc.). Some companies use a style that fits over Rx for all guests, even those who don't wear eyeglasses. It's a more streamlined approach. Anti-fog is a nice feature, especially when it's necessary to enter a hot, humid production area from an air-conditioned lobby.