Here is an online information source I have enjoyed some years ago; I believe it’s still current:
http://yhdistykset.etela-karjala.fi/liy/liy/linkit/safety.htm

Nicolaus

-----Original Message-----
From: DSowder@aol.com [mailto:DSowder@aol.com]
Sent: Wednesday, September 10, 2003 17:06
To: acro@gf24.de
Subject: [Acro] Polarized Sunglasses.

Hi all,

Time for a new pair of prescription shades. I've never used polarized before, and read somewhere that pilots should not use them. Any input? How about for judging? The main reason I'm considering them is that the optical shop says that they will not turn red eventually, as every other tinted plastic lens I've had has done in a year or two.

Thanks in advance,
Doug "squinty" Sowder