In article . com,
"Brent" wrote:

I did the silly procedure of turning on my lathe while there was still
a good amount of wet friction polish on my piece. Of course, I was
standing right in front of the piece, and the force made some of the
polish fly off and some droplets hit my glasses. I expounded my
stupidness my not wiping off the polish from my glasses right away, and
now it's "permanetly" stuck. Being very persistant, a light fingernail
scratching proved futile. Using a sharp object such as a razor blade is
out of the question, as this would scratch the surface. I suppose
there is some kind of solvent that I can use to remove the polish
without damaging the rest, but I'm not brave enough to test it out
unless others have used such.

Others would need to have the same type of plastic lens that you have.
There are several different kinds.

Get glass glasses next time? You must have plastic if you are worried
about scraping and solvents, neither of which affect glass lenses unless
the scraping is done in a gonzo fashion, or the "solvent" is
hydrofluoric acid.

--
Cats, coffee, chocolate...vices to live by