There might be some quality differences, but the important thing to look out for: The shades need to have an actual UV light filter, or they will be worse for your eyes than without shades. That's because the shades make your pupils open wider to let more light in without actually blocking the UV light.
I know in goggles for winter activities, there's a big difference in some of the tints. Blue blockers make the world appear as if you were on some sort of drug.