On Tuesday, June 03, 2025 03:49:49 AM Chris Green wrote: > Richard Owlett <rowl...@access.net> wrote: > > ROFL - Been wearing tri-focals since my 30's. > > Also have wicked astigmatism correct that eliminates trying to use "off > > the shelf" "reading glasses".
I also wear trifocals, and have astigmatism. They make clip on / flip up reading glasses. I see the best price on Aliexpress (other places I've checked are 2 to 6 times the price). I bought several (they were less expensive before the tariffs) to experiment with determining what magnification I should get on a pair of what I'll call of computer bifocals -- I want a pair of bifocals with near vision on the bottom and the rest of the lens to be suitable for viewing my computer from 34" away. So far +1.25 isn't quite good enough, and I'm probably going to buy the flip ups in +1.50 and +1.75 to see which does the job. (IIUC, the "near vision portion of a bifocal or trifocal is +2.50 by default.) (Aside: I rigged a hanging thing so I could measure the distant that my eyes are from my computer screen when I am sitting normally.)
