August 2, 2011
What’s in a Lens?
More often then not, when shopping for sunglasses, we pay less attention to the lenses then we do the frames. It is the style of the sunglasses that make them stylish, but it is arguably the lens that is the most important part. They are the part that makes sunglasses most important, protecting your eyes from the sun’s harmful UV rays. And while color plays a role in this protection, the type of lens is just as vital. There are many kinds of lenses, made to accomplish various jobs. Here are a few popular types of lenses:
Mirror-Coated Lenses: favored for the popular aviator style (think classic state trooper), among others, mirrored lenses protect the eye by limiting the amount of light that can enter the eye. They accomplish this by reflecting the light away from the eye, which restricts the UV rays that can reach the eye.
Gradient Lenses: Some of the best driving lenses you can find, gradient lenses are tinted from the top down, so that the top of the lens is the darkest. They are useful for blocking overhead light, since the top lets in less light, while still giving you visibility.

Double Gradient Lenses: Using the same logic as the single gradient, the double gradient are coated twice; one layer tinted from top to bottom, the other from bottom to top. These lens types are best for when you are around reflective surfaces, such as water, or bright surfaces, like sand dunes on sunny days.
Even though the majority of people shop by frames, it is the lenses that truly make a difference. Consider the above tips when shopping for your next pair of shades.
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