I'm going to the optometrist on Wednesday and will probably get a new pair of glasses. I thought about getting a pair of Transition lenses, but I don't know much about them. I spoke to an optometrist last week (not the one I'm going to see on Wednesday), and he tried to tell me about them. However, I don't know if there's some sort of trade-off. After all, these transition lenses obviously aren't glass. They must be synthetic. Does that matter? Realistically, if I'm outdoors in the bright sun, and I suddenly walk into a building, will it feel like I'm wearing a pair of sunglasses indoors, making it hard to see? I don't want to face this problem for years. How long does it take for the lens to go from clear to dark, and vice versa? The guy I spoke to said 6 minutes, but he also said you won't even notice. Sounds like a sales pitch to me. How can I not notice my glasses turning from regular glasses into sunglasses, and vice versa? Will the clear glasses still be perfectly clear after 1 year? I'm afraid that eventually, the transformation from sunglasses to normal glasses won't be as good, and a brown tinge will always be noticeable.