Photochromic Reading glasses Lenses are clear when indoors or at night and automatically darken to a sunglasses tint when exposed to UV sunlight. Lenses will begin to clear as soon as they are away from UV sunlight, and will be noticeably lighter and mostly clear within a few minutes. They absorb UV radiation that can otherwise damage your eyes. They are an excellent solution for people who hate constantly switching between their reading glasses and their shades.At the same time, it meets the requirements of long-distance, near-use and various distances in the middle. The multi-zone design makes the vision more comfortable and free.

Anti Blue Light Lens:Wearing a pair of anti blue light glasses will protect your eyes from the harmful blue light. No dry eyes during long time working with electronic screens.No headache after all day long office working.Reduce symptoms of eyestrain during prolonged computer exposure.

Multi-focus intelligent zoom reading glasses, anti-stun, wide field of view, fast color change, is a true progressive reading glasses, can replace the automatic zoom lens according to your visual needs.

Photochromic lenses protect the eyes from UV and ambient temperatures. Under UV light, the lens turns into sunglasses, preventing UV rays from entering the human eye, preventing glare and providing full protection.