I use Wiley XL-1 glasses.
http://www.wileyx.com/Tactical/ProductDetail/291_xl1-greyclear-matte-black-frame
A couple of years ago I blew up a Glock 21 while wearing a pair of plain RayBan glass-lensed sunglasses. Caught a bunch of high speed debris in my hand and lower face. Black eye, very fat nose and a lot of small facial cuts. Nothing to the eyes; dumb luck. I haven't fired a gun since without serious eyewear.
The Wiley XL rates very high on the ANSI scale, are pretty comfortable but they tend to fog. I can live with the fog but I don't want to live without eyes.
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