Photochromic lenses are one of your options when selecting eyeglasses. These lenses get darker in color when exposed to the sun or other sources of UV light. Photochromic lenses are ideal for people ...
Photochromic lenses, or chameleon lenses, have a variable light transmission. This means that they change transparency depending on the lighting. When they get ultraviolet rays, the lenses get dark, ...
Smith adds brightness-adjusting photochromic lenses to their contrast and color-boosting Chromapop line including the Smith Shift XL Mag lenses. Photochromic sunglasses are nothing new in the world of ...
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