SIGVAN Blue Light Blocking Reading Glasses Women Men 2 Pack Retro Computer Eyeglasses Fashion Metal Frame Glasses Readers 1Black 1Tortoise 2.75

Why do you need a blue light filter? Too much blue light can cause eye strain, blurred vision, and headaches. Recent studies show that too much blue light can lead to permanent eye damage and loss of vision. From now on, many digital devices are used at home and at work. It is important to protect your eyes as much as possible. Blue Light Filter Lenses feature a special coating that limits the blue light that passes through the lens. Wearing blue light filter glasses while working with digital devices can reduce the risk of eye-related problems. SIGVAN Blue Light Blocking Computer glasses reduce harmful blue light. You can use it for everything. Reduces the exposure of blue light from digital screens (computers, smartphones, TVs, tablets), and also cuts fluorescent lights, LED lighting and the sun. Maintains optimal eye health. Keep your device working and playing longer without causing pain, eyes or headaches. Keeps your eyes fresh and healthy. Improves sleep. Note: Due to the differences between different monitors, the picture may not reflect the actual color of the project. thank you? It is a size used for manual measurement and may have an error of 0 to 1 cm, which is normal.Please refer to the actual size. We will do our best to solve any problems and provide you with the best customer services. Thank you so much for support us!