Then wash with detergent using fingers instead of a cloth which can have grit in it. A rinse under a slow stream of water leaves the glasses dry.
I had a big scratch put on my glasses by an optician using a cloth one so I avoid them whenever possible. That said, IPA can't be beaten for hard greasy deposits!
(, Fri 13 Mar 2026, 8:03, Reply)
I used to use paintbrushes on any scratchable surfaces, to avoid picking up grit. The cloths they give out are just a bad idea.
(, Fri 13 Mar 2026, 20:32, Reply)