I wear regular eyeglasses while biking. My eyes would tear up a LOT even with the glasses on. Also the occasional dirt or bug would still get in my eyes.
Then I got those sunglasses called fitovers that go right over your eyeglasses. They are slightly goggle-like wrap around and keep the wind from getting in.
I LOVE them and always wear them biking now, even in winter. No glare, no bugs, no wind. Here are the ones i use:
http://www.eagleeyes.com/products/staclips/fitons.lasso