No doubt this subject will have been covered, so direct me if you know. I am 72, and visited my optometrist just before the craziness began (circa December 2019). The nice lady optometrist explained that my vision had deteriorated (correction was around ten diopters) to the point that she doubted the lens makers would be willing to grind them, as they would be too thin, and would probably break with normal use. She is familiar with my shooting needs, and asked if I had ever considered cataract surgery. Since I did not have cataracts, I told her no, I had not, but if she would refer me, I would go see the surgeon. After much pandemic-caused delay, the surgeries were completed in August and September, and I now see 20-20 from about 30" on out. I use 2.0 "readers" to see the computer monitor clearly.
What I can't see is the scale on the staff of the rear sight. After a little research, I found SSP Sports, which offers shooting safety glasses (similar to Wileys, Oakleys, etc) which has either "top focal" or "bottom focal" (their term for "like bifocals, except for magnification", like readers) ground in. I believe a pair of these would enable me to see to adjust the rear sight.
Anybody had similar experiences?