Q; I do a lot of driving. Is it worth getting Transitions lenses? I’ve heard they don’t get very dark in a vehicle.

A: You’re correct, typical Transitions lenses need UV light to darken, and most vehicle windows and windshields block much of that wavelength of light. The lenses might still be worth it for all the other times you might enjoy some relief from the sunlight. If you really want them specifically for driving, it’s possible to obtain lenses which are not as dependent on UV light to darken, but these remain a little darker in all light conditions.