Well, we're really on a roll now!
Prinz, there is a company called SAFILO that makes some of the absolute finest eyewear in the world. Like all of the best frame manufacturers, they're european. SAFILO is the world's largest frame manufacturer and they're located in Italy. They invented the spring hinge. Just recently, they've issued some of their frame-with-clip models with polarized lenses as an option. But, the styles are limited. Remember, any optical quality clip can be used as a frame itself for any lens you want. So you can still take any clip that is 'edgable' or ophthalmic, to be correct, and put plano polarized lenses in it. My private lab does it all the time.
Yosteve, aspheric lenses are a major improvement on old fashioned single curve lenses. But, the optics, although better, are different. Some folks have trouble adapting to them. It depends how old you are, how strong your Rx is, and how well the lenses are fabricated. Polycarbonate has very poor optical qualities, but it's cheap, strong, soft, lightweight, and has a high index of refraction (so the lenses are thinner for a given Rx.) Aspheric polycarb is a big improvement in the optics, but the material still yields some compromises. Hi-Index plastic actually has better optics. But it's more expensive, and slightly thicker. You can get hi-index aspherics, as well.
If you wear contacts too much, you may lose the ability to switch, or adapt, back and forth between contacts and spectacles. This is a big problem for patients with strong Rx's that fail to maintain some degree of spectacle wear and fool themselves into thinking that contacts are all they need 24/7.
Hope that helped.......Now.....,
what about that 3M SMR (#39009 for dark finishes?) Can a newbie like me use it to get off my first crop of water spots? Vinegar didn't work.