When sunlight bounces off a reflective surface such as glass, water or snow, the result is glare. Glare can be much brighter than the light that caused it, and can irritate or even damage the unprotected eye. Polarized lenses block vertically-reflected light by horizontally aligning the crystalline structure of the lens. This makes them ideally suited for use around water, snow, and for driving.
All lenses provide 100% UV protection.