Good luck! There used to be pros here who could answer your question
and explain it. Long gone...
FWIW, hubby had similar severe nearsightedness all his life and bought
the cheapest distance glasses we could find. He loved being nearsighted
for reading, splinter removal, etc. The doc who did his multi-focal
cataract lenses promised him that he would still be able to focus at 3".
He lied.
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Cheers, Bev
If voting could really change things, it would be illegal.
--Revolution Books, New York, New York