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1.56 Progressive Photochromic Gray HMC Optical lenses
Optical color-changing lenses belong to daily glasses, indoor office, outdoor sports, can be worn. Especially go out on vacation, extreme workers in the beach, snow or tropical, photography, tourism, fishing enthusiasts, middle-aged and elderly people or eye photophobia, need to wear sunglasses myopia, indoor outdoor activities frequently alternate teenagers, the pursuit of fashion young groups.
