<< > Yes, I think the issue is one eye dominant and focused for distance, and
the
 > other dominant and focused for closer vision.  This can lead to difficulty
 > in depth perception; particularly for objects moving directly toward or
 > away.  Not a good thing for flying.
 >  >>

Humm. Does not seem to make any difference with me. No depth perception
problems at all.
The way reading contacts work is that you can see BOTH far and near at the
SAME time. It is sort of a progressive lens, (areas on the surface are
corrected for reading but not most of it) but in my case it is clear for
distance. How this would affect perception seems not to be an issue. Are
progressive lenses a problem in this way for "bifocal glasses"? I think not
since they are approved for flying!
Marc Wiese 20B .....

 
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