Blue Light Blocking Glasses Square Eyeglasses Frame Anti Blue Computer Glasses [ HIGH QUALITY MATERIALS ]- Blue light blocking glasses are made of high-grade materials, the blue light blocking lenses comes with a standard anti-reflective coating, specifically developed to filter out the harmful blue light, the frame is super light and comfortable to wear. The lenses themselves were durably constructed, with flexible temples, brings you a comfortable wearing experience.It is suitable for teenagers, students, drivers, gamers, middle-aged and elderly people to protect eyes. [ RELEASE EYE FATIGUE ]- Blue light blocking glasses protect your eyes from long-time device exposure, it can also effectively relieve eye fatigue,sour distension, interference, blurred vision we suffer from when we’ve stared at our computer screens.Blue light blocking glasses blocks harmful uv, fog, reduced glare, reduction of blue light and can brings your eyes a comfortable experience. [ IMPROVE YOUR SLEEP ]- Blue-light Blocking Glasses can be your brain’s protection against strong blue light, that block disruptive blue light emitted from screens, which means that they help facilitate normal melatonin production, so you can fall asleep easier and get a better night's sleep. [ PRODUCT DESIGN ]- Unisex Retro Designs with super light frame, the classic design is perfect for both gents and ladies with all face types. [ WARRANTY PERIOD ]- The warranty period of our products is 60 days. If you have any problems after receiving the products, please contact us in time.We will contact you within 24 hours and provide you with the perfect service. Is Shayin a regular lens with a special coating? Shayin blue blocker lenses are made with a special blue-light blocking polymer from Mitsui Chemicals, a leading lens material manufacturer, that is directly incorporated into the lens materials. That means the blue- blocking technology won't chip or wear away. By absorbing blue light, this polymer prevents blue light from passing through the lens to your eye. Does Shayin lens come with anti-reflective coating?Yes. Shayin (regular and tinted) comes with a standard anti-reflective coating, and Shayin Photochromic comes with a super hydrophobic anti-reflective coating. Is Shayin the same thing as computer glasses?Shayin blue blockers are blue-light blocking lenses that are designed for all-day wear and protection from blue light. Whether you're a heavy computer user or not, Shayin can be worn like regular glasses to protect your eyes from harmful blue light emitted from any digital device, as well as artificial fluorescent and LED light exposure. Shayin lenses are not like the yellow/orange-tinted specialty computer glasses designed specifically for computer and gaming use. Should my child wear the Shayin lens?Yes. Children are especially vulnerable to the effects of blue light because their eyes have not yet developed natural defenses against UV and blue light. Now that smartphones, computers, and tablets are a regular part of kids' lives, they need blue protection more than ever. How does blue light affect the eyes? Prolonged exposure to high-energy visible (HEV) blue light can lead to eye strain and blurred vision. Studies have shown that it may also damage the retinal cells which can lead to an increased risk of developing age-related macular degeneration. Macular degeneration leads to vision loss over time. The Shayin blue blocker lenses block blue light and provide maximum UV coverage to protect your eyes. Shipping We offer FREE shipping on all orders! We ship within Three business days of payment, usually sooner. We use a selection of shipping services such as UPS, FedEx, USPS etc. We only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed. Local pickups and combined shipping options are not provided at this time. Return You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. Payment We accept payment by any of the following methods: PayPal Please pay as soon as possible after winning an product, as that will allow us to post your item to you sooner! Feedback Customer satisfaction is very important to us. If you have any problem with your order, please contact us and we will do our best to make you satisfied. Contact Us If you have any queries, please contact us via eCRATER. We usually respond within 24 hours on weekdays. Please visit our eCRATER store to check out other items for sale! Thank you for shopping at our store.