Polarized vs non-polarized

  The lenses of polarized sunglasses are coated with a thin chemical film. This film eliminates much of the harsh, brilliant light that’s reflected off water or highway surfaces on sunny days. They are designed to reduce glare and decrease the amount of reflections that your eyes see. Glare occurs when our eyes see a flat surface reflecting light at one angle. These reflections can make it more difficult to see clearly on sun-filled days.

  ​Non-polarized lenses treat all sunlight equally and reduce the overall intensity. This offers protection for the eyes but will not tackle shimmer and sparkle if you’re around water, snow, or glass. Non-polarized lenses can also protect your eyes from harmful UV rays no matter if you’re out on the beach, running errands, or just enjoying a stroll down the street. Most sunglasses are designed to filter out those rays and darken images, but if they are polarized, they will always be labeled as such.

Here's an example of polarized sunglasses