What is the difference between polarization and UV protection?
Polarization has nothing to do with UV protection. All sunglasses offer some amount of UV protection attributed to their darkening effect. Most polarized lenses will offer superior UVA and UVB protection when compared to regular sunglasses. The improved UV protection results from their engineered design. Why do I need Polarized sunglasses? There are several reasons: – Contact lens wearers often suffer increased discomfort from glare. Glare can be 7 to 10 times brighter than normal light. As the eye tries to adjust to glare, it constricts the pupil to reduce the amount of light coming in. Since a minimum amount of light is needed to see, your eye adjusts to let in as much light as possible without discomfort. Looking at glare can result in squinting, tired eyes and headaches. Polarized lenses minimize or eliminate the effects of glare vs. non-polarized sunglasses hence reducing these negative side effects. – Polarized sunglasses are normally not as darkly tinted as regular sunglasses. R
