Polarized lenses are, sunglass lenses that not only protect your eyes from the harmful rays of the sun (protecting against macular disease, cataracts, pinguelcua and sunburn), but also reduce the amount of glare reflecting off of shiny or wet surfaces. This offers the sharpest most unobstructed view of your world around you. A polarized filter is applied to the lenses which only allows light traveling in one direction to pass through.
Polarized sunglasses are ideal for water sports or hobbies such as boating, jet skiing, and fishing and also useful for snow sports like skiing and snowboarding. Sunglasses with ultra violet (UV) protection, should be worn year round when outdoors to protect your eyes from the harmful rays of the sun, but adding the extra polarized filter will give you the clearest vision possible.