Photochromic lenses: Adjust and change color due to the intensity of to the light surroundings. When exposed to intense sunlight, the glasses darken. In less light, the glasses will lighten. Polarizing layer lenses can effectively filter out excess light, weaken the strong light, make the dazzling light softer, play a good anti dazzling effect, make the field of vision more concentrated and keep the eyes always comfortable.
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