I havent tried the Wileys but have heard good things about them.
I personally happened to be tooling around the International Motorcycle Show in Washington DC last January and there was an optician there with a booth selling riding glasses. I wear glasses and looked pretty goofy with the big James Dean goggles over them so I stopped to see what the guy had to offer. I walked away with hands down, the best sets of riding glasses I could want. I bought two pairs and one pair is prescription with the photgrade transition from yellow to black and as Mattman and Dr. Doolittle said, they didnt get quite dark enough for extremely bright sunny days so I got a pair of straight up dark prescription glasses as well. They are both the Panoptix Raptors and I love them. They also come with foam inserts and a neck strap to keep them from going very far. Very comfortable.....just my .02.