Think about where you will wear them. If you are buying your glasses for a specific sport, such as cycling, this should be easy for you
If you motorcycle frequently you should definitely get prescription motorcycle sunglasses or goggles—luckily, we're here to help you narrow down the one that suits you best.
Aside from your helmet, goggles are one of the most important pieces of riding gear you wear.
The U.S. Military issued rigorous ballistic tests that protective eyewear worn by military personnel have to pass.
A low VLT number such as 15 percent means less eye fatigue on sunny days. And a high VLT number such as 70 percent means better color and depth perception on low-light days.
The single most important thing to look for when buying casual sunglasses to protect your eyes is a sticker or tag indicating that they block 100 percent of UV rays.