SIGVAN Women’s Fashion Print Blue Light Blocking Reading Glasses

Blue light is a short wavelength light that can cause fatigue of the ciliary muscles, eye strain, sleep disorders, damage to the retina, dry eyes, stiff shoulders, and headaches. It is emitted from smartphones, PCs, and TVs, so using blue light blocking glasses is recommended. SIGVAN blue light blocking glasses are of high quality, lightweight, and durable. They are designed with metal spring hinges to adapt to the face and come in a set of 5 for convenience. The lenses are clear and have no color difference, making them suitable for reading. Made of plastic, they are super light, abrasion-resistant, and have a low friction coefficient. The package dimensions are 5.91 x 4.33 x 2.17 inches, with an item model number of 246. They are unisex and were first available on January 21, 2021. If there are any issues with the glasses, the company will provide the best customer service.