On Friday, May 25, 2012 8:22:56 PM UTC-4, Richard wrote:
How many of you use polarized sun glasses? Are they common? Are
they popular? Do they work?

Besides the problems with LCD instrument screens, polarized sun glasses are said to reduce the visibility of other aircraft because they reduce the "glare" off the surface of the other traffic. For that reason, polarized glasses may reduce your situational awareness and increase your possibility of mid-air collision.

If you take off your polarized sunglasses, you will sometimes see a flash of sun bouncing off a banking glider's wings (often in a spot where you did not see the aircraft before the flash).

Polarized glasses make the clouds look "pretty" but I'd rather see the traffic better. Glare is your friend.

Dr. Dan had a Soaring Rx column on sunglasses in Soaring magazine recently that seemed pretty good. It covers some other points not mentioned here. Like 'avoid color shifting lenses.'