Driving when the sun is blazing hot could be hard on the eyes. That's why drivers need a bit of shade so as not to be blinded be the sun's bright rays. I'm a person who uses glasses. I can't drive without using eye glasses. I don't have any sun glasses but in planning to get one. If course, I need prescription lenses for the sun glasses so that I could see the road. However, a friend has also suggested that instead of sub glasses, I should get transition glasses instead. Transition glasses have lenses that become tinted when bright light shines in it. What do you think?