Have to disagree on the polarising lenses there Extra. My brother says you shouldn't use them. Can't remember why, wasn't really listening but he is an airline pilot so I can only assume he knows the story.
I wear polarising Bollé shades in car and in plane. LOVE the,. I have had them for about 7 years and I wear themm every day, though they are scratched to bits.
I can't see the flydat (oil pressure, EGT, CHT, RPM Oil temp) in the plane with them on though, or the radio in my car, without tilting my head all over the place like an owl or something.
Smoke me a kipper, I'll be back for breakfast.