I need reading glasses to read just about anything it seems. And I discovered a couple
of years ago that bifocals were handy on the boat because they could be used as
reading glasses and sharpen my vision for looking at further away objects (like
reading the numbers on buoys in the distance). Despite this, I don't normally wear
any glasses. In any event, I decided it would be a good idea to get a spare pair of
bis since they were being sold for a reasonable price ($99 @ Cohen's Fashion Optical).
I asked them whether they could make polarized prescription bis and they said sure, so
I antied up some more $. At least this way, I wdon't have to keep switching glasses. So
far, so good.

Jerry