To be rated as safety glasses, both frame and lenses must adhere to particular ANSI standards. Protective eyewear is just as important at home as it is at work. If you use lathes, saws, sanders and other power tools at home, you need protective eyewear. It should cover not only the front of your eyes, but also the sides and top, so small airborne particles can't get in. Please call customer service if side shields are required. We can provide permanent or detachable side sheids. Our ToughRx polycarbonate lenses are also the most impact resistant lenses available making them the recommended lenses for children’s glasses, sports eyewear and safety glasses.