![Smart sunglasses change tint with the click of a button and can even take phone calls | Daily Mail Online Smart sunglasses change tint with the click of a button and can even take phone calls | Daily Mail Online](https://i.dailymail.co.uk/1s/2021/06/02/22/43761081-0-image-a-25_1622671012209.jpg)
Smart sunglasses change tint with the click of a button and can even take phone calls | Daily Mail Online
All About Eyes Abuja - Lenses that go dark in the sun are referred to as #photochromic lenses. They have tiny molecules embedded in them that react with UV (ultraviolet) sun rays
The Eye Surgery & Laser Centre - Yes. Photochromic lenses turn dark and offer protection from the sun on exposure but when in most modern cars, the windscreens have UV protection properties
![Graded Photochromic Anti Radiation Computer Glasses With Grade Men Women Metal+TR90 Sun Adaptive Anti Sunlight UV400 ProtectionReplaceable Lens Eyeglases Frame | Lazada PH Graded Photochromic Anti Radiation Computer Glasses With Grade Men Women Metal+TR90 Sun Adaptive Anti Sunlight UV400 ProtectionReplaceable Lens Eyeglases Frame | Lazada PH](https://lzd-img-global.slatic.net/g/p/582e0712b82f0437d4007653fb3fcfc9.jpg_960x960q80.jpg_.webp)