My eyeglass coverage from work has kicked in for this year and I've decided to purchase a pair of prescription sunglasses, which I've never had before. My current glasses are transition, so do go dark outside which I love. But they do not go dark when driving as a car windshield already has UVA/UVB protection which is what triggers the lenses to go dark. I'm finding I need sunnies for driving.

So what does a person look for in sunglasses? Do you basically look for the same style as you would prescription glasses in terms of size, colour, fit and then just picture those with dark lenses? Or do you look for a different style and colour frame altogether? Do you go bigger with sunnies?

Help a sunglass newbie get started please