Generally, instead of being scattered in random directions, light reflected from surfaces such as a flat road or smooth water is horizontally polarized. This creates an annoying and sometimes dangerous intensity of light that we experience as glare. Polarized sunglasses contain a special filter that blocks this type of intense reflected light, cutting glare to improve comfort and visibility.
Outdoor enthusiasts who benefit the most from polarized sunglasses include boaters, fishermen, skiers, bikers, golfers, and joggers. Polarized lenses give the wearer the experience of a clearer view because of the elimination of glare and reduction of eye fatigue. These sunglass lenses can also be beneficial for driving to reduce glare from long, flat surfaces such as the hood of the car and the road's surface.