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  • 100% Money Back Guarantee

    Money Back Guaranteed

    At GlassesUSA.com, returns and exchanges are
    made easy. We do our best to make returns and exchanges as easy as possible.
    We are pretty confident that you'll love our product. However, if for some reason or other you're not completely satisfied with your glasses within the first 14 days of receiving them, you are entitled to a money back return or a 100% store credit. No
    questions asked and hassle-free.

  • Free Shipping & Returns

    Free Shipping & Returns

    Enjoy Free Shipping and returns on all orders
    (for orders in the US). If, for any reason, you are not completely satisfied with your order, you may return
    it within the first 14 days. We even provide you with
    a return shipping label, no questions asked!
    Read our full return policy.

  • 365 Day Warranty

    365 Day Warranty

    All of our glasses come with a standard 365 day
    manufacturer’s warranty. This covers any possible
    defect in the frame or lens that can reasonably be
    attributed to the manufacturer’s responsibility and not
    a result of normal wear and tear, accidental damage
    from handling or improper use.

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Photochromic Lenses

The convenient choice

 

Adaptive lenses are smartly crafted to automatically adjust from clear to dark (and vice versa). The lens is activated by UV light and eliminates the need to constantly switch between your eyeglasses and sunglasses. These lenses are available for both Single Vision and Progressive prescriptions.

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This is the most popular adaptive lens in the industry, primarily because it truly is the best. Sharper transitions and darker lenses in the sun make this a leader in the market. Transitions are also the only brand of adaptive lenses that fully adapt in cars, whose windshields’ UV filters normally prevent activation in other adaptive lenses).

PHOTOCHROMIC

This is an affordable non-branded version which is almost as good as Transitions, but at a significantly reduced price. We craft the lens in our own factory and feel that it provides great value even if the darkness level is slightly less than that of the Transitions. It’s important to note, that these lenses do not adapt in cars due to the UV filters applied to their windshields.

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* both lenses can be added to the following lens types: Single Vision, Near Vision, Progressive and Non prescription lenses.

How does it work?

Photochromic lenses, also known as Adaptive lenses, are optical lenses that darken on exposure to UV rays. The UV light activates the lens technology to transform the lenses from clear to sunglasses, and a range of in-between tints. The lenses are fully clear indoors and at night, and when activated by UV, they darken and block the UVA and UVB rays.

Most commonly, Photochromic lenses are made of polycarbonate or some kind of plastic polymer. Rarely, they may be made of glass.

Usually, upon exposure to UV rays, it takes up to one minute to darken significantly. It can take up to 2-3 minutes for them to clear.

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