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 Three Strengths in One Pair - The Bottom Part of the Lens for Reading with Power, the Middle is Slightly Reduced Magnification for Computer Use, and the Top is Further Reduced for Your Surroundings. Our Progressive Trifocal Lenses Use Gradual Progression for Highest Clarity. No Longer Will You Need to Carry Multiple Pairs of Glasses