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If light conditions remained as constant as they are in the eyecare professional’s exam room, you wouldn’t need anything more than clear lenses in your glasses. Transitions lenses are clear indoors and at night but automatically adjust their level of tint to changing light conditions outdoors. Transitions lenses change from clear to dark in the presence of ultraviolet (UV) radiation, such as when exposed to sunlight. Indoors and at night, Transitions lenses are as clear as regular clear lenses. Outdoors, when exposed to the sun’s UV rays, they turn sunglass dark.
But Transitions lenses don’t stop at improving visual quality and visual comfort. Like skin, our eyes need sun protection too. Transitions lenses provide UV400 protection, blocking 100% of damaging UVA and UVB radiation and helping to preserve your long-term eye health. Transitions lenses are the #1 recommended photochromic lenses by eyecare professionals worldwide.
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Transitions lenses are the first lenses to earn the American Optometric Association (AOA) Seal of Acceptance for UV Absorbers/Blockers and the first to receive the World Council of Optometry (WCO) Global Seal of Acceptance for Ultraviolet Absorbers and Blockers based on the WCO's scientific testing protocol. Additionally, Transitions lenses meet internationally recognized standards for UV blockage, including ANSI Z80.3, ISO 8980-3, EN 1836 and AS/NZS 1067..
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