Best budget: Knockaround Pacific Palisades Pros ... offers both non-prescription and prescription versions of its Barkley polarized sunglasses. The polarized prescription versions are made ...

If you work in an environment that exposes your eyes to potential hazards like flying debris, chemicals, or radiation, ...

and other features that make this affordable brand a top pick. Most of the models have polarized lenses, and the prices range from $25 to $45. Asos Design sunglasses, which cost under $20 ...

But what, exactly, are polarized sunglasses? What are they for and why do they cost so much? We called up a few eyewear experts for a definitive answer. Simply put, polarized lenses filter light ...

UV rays can cause visual damage and hinder life enjoyment. Sunglasses serve aesthetic, social, and psychological functions.