My glasses slipped off my nose when I was bending down and fell on the floor. One of the lenses went poing! I thought it might have broken, but I was lucking in that sense that it had only popped out. I went through a few of the labs and found one who had a set of jeweler’s screwdrivers that I could borrow. After that, I was able to clean my glasses with 70% ethanol and kimwipes. Brought back memories :)