The best sunglasses for eye protection must can block UV rays. That is to say, you shall buy sunglasses with UV protection so as to shield your eyes when you in sun. Besides, to get better protection, polarized sunglasses are necessary. Compared with normal sunglasses, polarized sunglasses can not only prevent UV rays, but also filter glares. What's more, to give your eyes all-around protection, wraparound style sunglasses are recommended.
When you go to choose sunglasses, make sure the sunglasses can protect your eyes well. First of all, you should consider whether the sunglasses have 100% UV protection. Sunglasses with 100% UV protection coating or UV 400 can prevent your eyes from all UV rays including UVA and UVB rays. In addition, polarized sunglasses are better for eye protection because they can reduce the glare from surface of water, snow and glass.