MARE AZZURO Photochromic Bifocal Reading Glasses Men Blue Light Blocking Readers Sunglasses 1.0 1.5 2.0 2.5 3.0 3.5 4.0

Photochromic bifocal reading glasses for men 2.0 : darkens the lens to grey based on sunlight and ultraviolet light. Outdoors are bifocal sunglasses, and indoors are blue light blocking reading glasses; the bifocals are for both near and far reading, so perfect for driving, meeting, traveling, watching TV, shopping, walking, cycling and so on. Eye protection: HD photochromic bifocal sunglasses 2.00 with UV400 protection effectively cut blue ray from digital screens (computer, phone, pad, TV, LED, etc.) and block glare and UVA/UVB radiation from sunlight. Relieving your eyestrain & headache from long-term screen reading, working, watching video, gaming, or playing mobile to have a better sleep at night! Comfortable fit: with flexible spring hinge fits well for most faces even large head or wide face. Lightweight and extra large square frame give you a broad vision without turning neck for a all-day comfort. Transition photochromic bifocal readers allow you to stop changing betw