I wear a fullface but typically ride with the shield up under 60mph or so, so I always wear glasses as well. Smiths/ maverics for sunglasses. They are polarized and make a bit of a rainbow reflection off of my face shield or windscreens. Anyone else notice this? I also wear just plain safety glasses in low light conditions. But I don't have much of an issue with my eyes tearing up so it dosen't matter what I wear.
I had a good sized rock ricochet off my face shield at 70mph on the highway this summer, makes you think about keeping the shield down more often.