SafeVision®, a leading provider of prescription safety eyewear and corporate eyewear programs, offers the industry’s largest selection of ANSI Z87.1 certified prescription safety eyewear.

If you already wear prescription glasses, the HexArmor LT250 will be the least distracting over your frames. Our panel of testers found these safety glasses ... (ANSI) Z87.1+ (PDF) rating (which ...

From what I can tell, it looks like Z87-2+ means high-impact rating certified prescription safety glasses. They are tested for impact resistance—making sure the frame and lenses can sustain ...