【Photochromic Reading Sunglasses】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 are an excellent solution for people who hate constantly switching between their reading glasses and their shades. 【 Multi-focus Reading Glasses】Intelligent progressive multifocal lens give the best experience. Multifocus Reading Glasses feature three strengths in one pair of reading glasses so you can read, work on your computer and interact with others without having to take your glasses off. you need about a week to get used to progressive multifocal glasses.
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