multifocal glasses are not only for reading but also for distance, so that for driving a car [Three Levels of Vision]Progressive multifocus glasses for all your need. Top part is half-power magnification for walking, shopping. The middle part is slightly reduced power magnification for working on computer, watching TV, etc. The bottom part of the lens is full-power magnification, then used for nearly distance reading. It means that you can wear the glasses anytime and anywhere. If it is the first time someone trying to wear a progressive multifocal reading glasses needs to adapt to these products for a while, you will be amazed at it. Just as everything is difficult at the beginning, it is best to find the one that suits you best. I hope that all customers are satisfied with our service.If you have any questions please contact us this reading glasses is comfortable and adjustable Vision the yellow line is the demarcation line. They can help first-time buyers how to wear the glasses. You can use the glasses cloth around your nails and then take it Photochromic lenses are transformed from indoor reading glasses to outdoor reading glasses. They can also be used as ordinary photochromic sunglasses with UV protection. Sports Frame is Lightweight But, for Safety Eyeglasses with Wraparound Design that Provides Increased Side Protection and Peripheral Vision Note: This is not sunglasses! ! The photochromic lens changes according to the intensity of ultraviolet rays. The stronger the ultraviolet rays, the deeper the discoloration, and the weaker the ultraviolet rays, the lighter the discoloration. (We will check carefully before leaving the warehouse). 【 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. As it is a pair of progressive multifocal glasses, so generally speaking, you need about a week of adaptation.but the adaptation period varies from person to person, walk slower when feel dizzy