My friend toemi posted a question about transitions lenses for glasses... My commnet to her was getting to be more like a book so I figured I'd just post about it.
Jeffrey recently got Transitions lenses for his glasses. They are great because I don't have to remind him to switch glasses to sunglasses or vice versa when out and about. He says they change pretty quickly now from light to dark, only about a minute to lighten up some and then only a few more to lighten completly when going inside. They darken just about instantaneously when he walks outside too which is great. He says he never has to squint so that must be good.
He only has one complaint about them. They do not stay dark in the car. The sales lady says the lenses need UV rays to change but the car windows are treated so UV rays won't be problematic.
Also, when Jeffrey got his last pair of glasses he made a frame change. This was a huge deal for him because he's always had oval shaped wire rimmed frames. This time the sales lady and I convinced him to go with a more rectangular fame that is a thin black plastic rim. They look great on him but it did take him a while to get used to the look/feel.
Hope the info helps toemi...