Just thought I'd chime in with what I do... I am nearsighted,
astigmatic, and now presbyopic (the old man's eye problem

I have a single vision (distance) lens in my left eye (I fly from the
left seat) and a bifocal in the right eye, with the line 2 mm lower than
usual, to read my charts with. This has worked well for a few years,
but now I may need to move the line up so I can read my instrument
panel. The bifocal is just a +1 or so - whatever the least amount they
can put in is. I tried higher amounts but they don't work for me since
I don't like the different sized views I get from each lens (the bifocal
part gives a bigger image).

One optometrist would absolutely not fill my prescription - he didn't
think it was "a good idea". My wife also had a problem with some
glasses she bought (wavy distortions) and he absolutely would not
believe her, nor would he look through the lens himself. Alas, he died a
week later and we got everything straightened out.

Jose
--
The price of freedom is... well... freedom.
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