Caring for your goggles:
First, when you get snow on your goggles, don't wipe them off with your glove or rag. Snow is made of abrasive ice crystals which will scratch the goggle lenses. Best to shake the snow off, let them dry off naturally or use a special lens cloth to wipe them clean. If your goggle lenses pop off regularly, try a simple silicon sealer to hold them in place.