Most roadies seem to wear glasses with some kind of tint, or even full sunglasses. I personally can't use anything that alters colours or darkens my view, so I wear clear glasses. But why do so many wear sunglasses or tinted glasses? I can't see that any benefit would come from it, so is it just to "look cool" or are there more practical reasons?

I truly want to know - I'm not trolling! Reading the post again, I saw that it could be interpreted that way.