Originally Posted by
patentcad
They keep sharp objects that the road throws at your face/bugs out of your eyes. I wear clear lenses on cloudy days or in the dark, but I always use eye protection on a bicycle or motorcycle.
Same here. Eye protection is far more important than helmets. I would never consider riding without eye protection (or would feel very vulnerable if I forgot), but although I "always" wear a helmet, I wouldn't think twice about riding without it if I forgot it, and wouldn't feel vulnerable at all.