Glasses are great, they may not be for everyone, but they’re useful. The only problem I have with them is that, over time they become loose, and start slipping down your nose and eventually off your face. The screwdrivers you can buy to tighten them are ridiculously expensive. And unless you go to an eye doctor regularly, you’re stuck with them. Srsly? Come on! Not even five minutes ago, I sneezed and my glasses fell off my face and disappeared under my seat. Is there any way I can prevent this without wearing those bead strings that you attach to your glasses?