Any opinions on transition glasses and so they work well as claimed?

[Nasir]

Some people told me that transition glasses work well and I should get that kind of glasses. I just wonder do they really work well as they claim. What's your opinion?

[Nelson]

Transition lens will turn dark once the UV rays hit them. However they won't get completely dark when you are in a car because the windshields have block most of UV rays and only a little get into your car. If you want to get a really dark sunglasses, I wouldn't recommend transitions glasses. If you don't use them for driving, it's a good option to get.

[Jase]

transition glasses is a very good one because it can change its color automatically.When you get outside, it will turn dark.While you get inside, it will turn clear just like regular glasses.