My magnetic clip-on sunglasses are pretty beat up.
The lenses were scratched pretty badly, so I decided to polish them up.
I tried toothpaste, though it didn't seem to be doing much.
So, I switched to 2400 grit sandpaper.
Now, I've used it to polish out a scratch in the butter door of my fridge.
But I knew there was some inherent risk.
Apparently, the glass in the lenses is a little more sensitive than the polycarb of the butter door.
I need to find another abrasive.
Meanwhile, I'm squinting a lot more.