BLUE LIGHT BLOCKING LENS ►Retro round glasses can effectively block harmful blue light and glare, provide 99% UV400 protection. Blue light glasses Suitable for long -term staring for digital screens, computers, reading, playing games, causing eye fatigue, blurring vision, headache and other symptoms. Help you have a smooth sleep. SAFE &FLEXIBLE TR90 FRAME ►The lightweight circle glasses has the characteristics of super toughness, anti-collision and wear resistance, which can effectively prevent the eyes and face from being damaged due to the breakage and friction of the frame in motion. The total weight of vintage glasses does not exceed 18g, you can hardly feel it on your face, it is comfortable to wear and durable, is the best choice for glasses lovers.