Fashion Black Tofu Pudding Sunlight Anti-Blue Light Darkening Glasses Photochromic

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 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, durable and not easy to damage. Huge square but lightweight frame give you a broad vision without turning neck for a all-day comfort. Transition photochromic bifocal readers allow you to stop changing between clear bifocal and sunglasses, make indoor and outdoor reading more comfy!

Lens width: 58 millimeters Lens height: 48 millimeters 
Bridge: 17 millimeters 
Arm: 137 millimeters
Function: filter blue light and photochromic,
7-layer anti-reflective coating to reflect and filter blue light,
PHOTOCHROMIC GLASSES: Cut UV 400 (ultraviolet ray), reduce eyestrain and sleep better.
High light transmittance with no noticeable yellow tint to prevent color distortion, minimize glare from digital screens.BLUELIGHT BLOCKER & REPLACEABLE LENS: Reduce symptoms of eyestrain during prolonged computer exposure. These frames are best used as indoor lenses for long hours of computer use in order to maintain natural sleep patterns and eye production. The original non prescription lenses can be replaced with progressive lenses at any stores.COMFORTABLE WEARING: Lightweight and durable. These glasses fits well both for small faces and big heads with adjustable nose guards. You can wear our glasses for long periods of time in front of digital screens or for your upcoming trip out of town.SUITABLE OCCASION: These Glasses are perfect for daily, office, reading, computer games, etc. Bring you visual experience and a fashionable and healthy lifestyle