Dog Glasses?

I didn't know they made glasses for dogs, but someone does. I'm driving along and I see a bulldog-type dog sticking its head out of the window. Then I do a double take. The dog has some rather stylish, lightly tinted glasses. They're not exactly sunglasses, and they're staying on a bulldog with it's head out of the window, so I can only assume that they are prescription glasses made for dogs. Either some people out there just have too much money, or I just don't have enough.