SIGVAN 5 Pack Blue Light Blocking Reading Glasses for Women-Computer Readers Spring Hinge Fashion Anti blue Eyeglasses -5 Mix- 1.25-

What is Blue Light? Blue light has a short wavelength and is likely to scatter, causing fatigue of the ciliary muscles, which are the adjusting muscles that adjust the lens, and may cause eye strain. Blue light can cause a wide range of risks including eye strain, sleep disorders, damage to the retina, dry eyes, stiff shoulders, and headaches. For those who operate smartphones and PCs or watch TV, it is recommended to take measures immediately with blue light blocking glasses. ? Eye and body strain caused by blue light Blue light generated from PC and smartphone monitors causes health problems such as eye strain. SIGVAN Blue Light Blocking Glasses protect your eyes from all the blue light and UV rays generated in daily life, and prevent various health hazards. 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! HOW TO CARE Never wipe the lens when they’re dry. Please use neutral detergent or soap water to clean, gently wipe dry with a clean soft cloth.