Can glasses lose their polarization effect?

Question

I have polarized sunglasses. I have left them in the car before, and in Arizona that means extreme heat conditions. I feel like they dont block out glare as well as they used to. I could be just imagining it, but can sunglasses lose their polarization?

Answer 1

No, they do nto loose their polarization. Polarized lenses have a lminate that has the poarization in it sandwiched between two layers of lens. They do not loose their polarization. You might have something else that is causing you to be more light sensitive, though. Higher elevation, medication changes, illness. Lots of things can effect your reaction to the sun.