318ti Windshield and UV protection

[zboot]

Hi,

Does anyone know if our windshield blocks UV rays? If you don't know but wear glasses and have transition lenses, then my question to you is: Do you glasses darken while you're driving?

I lost my glasses while partying last week and am now getting new ones. This time, I'm getting transition lenses (as well as contacts for the times I want to roll w/o glasses so I don't put myself in a situation to lose them if I have to drive later). All the photochromatic coatings are activated by UV rays. However, many windshields block UV rays and thus the darkening effect won't activate inside those cars. I suppose I'll get some cheapo sunglasses that I can wear with contacts, but I'll be nice to not have to switch from my glasses to contacts whenever I want to have "shades" in the car. (I have my reasons for not wanting to tint).

Anyway, thanks all.