If your sunglasses offer full coverage, ballistic protection, and the frames are also rated, it should be a non-issue. I'd also recommend a strap to hold them on to your head. One thing people forget, is that once a lense is struck or scratched, it's now no longer considered viable as a safety lense.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē