designed to meet the visual needs of customers with a near addition who want to feel safer and more comfortable when driving. These lenses provide fast refocusing between the road, dashboard and mirrors. Apart from driving best for computer work and outdoor Stylish Lightweight Frame Durable Reading Glasses - perfect for eye protection while reading, sticking to eye health. Bifocal Lens correct both long-distance and near vision by combining two prescriptions into a single lens, allow you to comfortably shift between reading and looking at something in the distance, such as watching TV. Blue light blocking reading glasses helps middle-aged and elderly people have a better viewing experience (reading, using electronics, and enjoying the beauty). bifocal lens gradually changed and transited by optics step by step, gradually increasing the degree within the acceptable range of human eyes, so as to meet various purposes. The use of bifocal zoom glasses can make the eyes more relaxed, reduce the tension of vision. Most people wear a new bifocal glasses need about 1~2 weeks of adaptation, but the adaptation period varies from person to person, please care for walking when you feel dizzy. Note: As two sides of the lens is astigmatism disorder district, you need to turn around the head and eyes in order to see objects on your both sides clearly.
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