@sunnyflower

I doubt very much that prisms ground into a lens could be removed. One inexpensive option is to have your ophthalmologist put a prism sticker on the lens. It's not a permanent solution, but it's something that could be done to see if a ground in prism would be the answer. Another possibility is having 2 pairs of glasses.

I have a prism ground into the right lens, but after a month or two, the double vision became worse than ever. When I switch to my sunglasses, that don't have a prism, it takes a few minutes for my eyes to adjust. If I'm only going to want sunglasses for a short time, I use clipons. A prism can't be ground in a sunglass lens, I believe. My vision is noticeably worse when my eyes are tired, especially for reading.

For the month that the prism worked, it was really nice. @avmcbellar - Toni has given me good information about treating diplopia, some of which I'll pursue if/when it gets bad enough.

As if we didn't already have enough things to deal with! Right?

Jim