well if your not afraid to spend a little money, I would suggest getting some oakleys, either M frames or half jackets and get the polarized lenses.
Sure Oakleys are cool. But it's all in the lens, not the frames (i.e. half jackets). I got a pair of Oakley 5s, black Iridium. I was able to wear them after an eye exam and walk right out and even stare at the sun (they block out like 91 or 93% of the sun's rays). Get the gold iridium.
Other than that, I've got about 8 - 10 pairs of Revos - all mirrored, from green to blue to gold to stealth to red to orange. I won't sell you these, they are my weaknesses, fetishes. But all the Revos are typically the same light allowance, unlike Oakley.
Oh.... big diff between the old & new Revos. If you don't care about quality so much, you might find the new ones great. The vintage ones are the cat's meow, and you can find them on Ebay at a premium. Not sure, I haven't looked in awhile. I don't even wear glasses but very picky about my sunglasses. My collection is probably worth around 3 - 4k.
But as long as you go for the mirrored, they are good for poker. They may look blue or whatever on the outside, but they are always light gray or light brown from the inside looking out.