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    How Can I Check The Photochromic Layer Of My Lenses Is Working Well?

    Photochromic lenses are eyeglass lenses that are clear indoors and darken automatically when on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In the absence of sunlight or low ambient light conditions, the lenses return to their clear state.

    The Photochromic treatment is applied throughout the body of the lens by casting at moderate temperatures. They are made of glass or polycarbonate material. We principally use them in Syght's computer and gaming glasses, which get darks during bright sunlight and clear indoors while gaming or using a computer. When in contact with UV light, the photochromic particles are activated in 30 to 60 seconds and take somewhat longer to clear.



    • They are most convenient going out during sunny days.
    • There's no need to carry both glasses and sunglasses. Swapping between the two.
    • They help reduce eye strain, eye damage, and potentially heightened risk of cataracts later in life by blocking up to 100% UVA/UVB light.
    • It may save you money - although photochromic glasses can be more expensive than ordinary prescription glasses, they're effectively two-in-one, meaning you won't have to buy separate glasses and sunglasses.

    If you're not sure about their working, cover one of the lenses with your hand, put the sunglasses on exposure to sunlight, wait 30 to 50 seconds and check the difference between the activated and non-activated lenses.



    Photochromic lenses can be worn all day, every day, just like regular eyeglasses, even while driving, working on a computer, gaming, or watching Netflix. Anybody can benefit from them, but especially those who regularly interchange from indoors to outdoors. Photochromic glasses can be perfect for children wearing prescription glasses and unlikely to juggle two separate pairs of glasses - regular prescription glasses and sunglasses. It also helps their eye health from an early age by protecting them from the sun and UV rays.


    Photochromic lenses and blue light

    Photochromic lenses were originally developed to protect the eyes from bright sunlight, but now Syght offers a new benefit: Protecting the eyes from the harmful blue light of electronic devices. Most people buy photochromic lenses to ease the transition from artificial (indoor) to natural (outdoor) lighting because they eliminate the need for prescription sunglasses.

    • Besides protecting your eyes from harsh UVA/UVB light, photochromic lenses offer a significant additional benefit!! They help protect your eyes from harmful blue light.
    • Blue light contributes to digital eye strain and causes oxidative stress in the retina. It's even possible that long-term exposure to harmful blue light, display screens of computers, smartphones, and other digital devices may increase a person's risk of macular degeneration and other eye problems later in life.
    • The adaptive nature of photochromic glasses means they're better for your eyes as it reduces squinting and eye fatigue.
    • Photochromic lenses protect against the highest energy level on the light spectrum, which means they also protect greatly against blue light and are great for computer use.


    Please note: Standard photochromic lenses do not work inside a car due to the windscreen blocking out the UV rays which are needed to activate the chemical process, which causes the lens to darken.


    Please contact us at Support@syghtglass.com if you're having difficulty using Syght computer & gaming glasses with Photochromic layer. 

      Worldwide Standard Shipping
      Syght glass offers Free Worldwide Standard Shipping on orders over $70.00. Your order for Non-Rx Glasses will be processed immediately and is often shipped from our warehouse the same business day or the next business day. However, please allow approximately 3-7 business days for your order to ship if your order contains RX or photochromic lenses.  

      Delivery times range from 2-9 business days, depending on the destination. Most customers receive their order within a week, but delays are possible. We will send you a tracking number by email after your parcel leaves the warehouse.

      Money Back Guarantee
      If you are not satisfied with your Syght glasses, you can easily return or exchange them within 30 days of purchase for non-prescription products. Prescription products must be returned within seven days of delivery for store credit. Returns must be unworn, in the state you received them, and in the original packaging. Returns will be processed within 3-6 business days of receiving them.

      Please note: Refused packages—and those that are not received due to negligence on the part of the recipient (e.g. mis-typed address)—are refunded once received by our warehouse, less the cost of shipping to and from the destination country, as well as any applicable duties and taxes.