I typically do living history for the 1830s-era in Texas. I have a pair of eye-glasses with small round lenses and double-folding temples that look like alpaca or "German silver." As decrepitude sets in, I've gone to bifocals, but I just have lenses for distance installed.
I also have a pair of Jas. Townsend's frames with brass sliding temples for the Civil War era. Again, these have lenses for distance only. Over time, these turn the bridge of my nose green. Some people report that they are uncomfortable to wear over time, but some nice thread or yarn and tying a thin cover would help with that I expect. I may have to do the bridge that way with some linen thread.
I also have a pince-nez, again with distance only lenses. The nose-pieces are far from satisfactory, and so at some point I'll have to tweak them a bit.
At a future date, I may grab a pair of the late 1700s bronze frames on offer by Avalon Forge. Hopefully these are still available!
I must be lucky? My eye doctor uncomplainingly installs my prescription lenses?
I have to take them off and wear modern safety glasses when I skirmish, of course, but that is because of basic safety while firing the musket. "eyes and ears" as the saying goes!