2011年8月25日星期四

Magnetic Eyeglasses: What Do You Know About Them?

Magnetic eyeglasses are also called clip on sunglasses, clip on eyeglasses or sunshade models. We can call them sunglasses and eyeglasses because they can be used as both sunglasses and regular eyeglasses. This kind of eyeglasses can not only provide vision aids according to customers’ needs, but also protect the eyes from the intense sun and UV rays. Although their functions seem the same as prescription sunglasses, but the structure of between magnetic eyeglasses and prescription sunglasses are totally different.
The most visible differentce between them is magnetic eyeglasses with magnetic clip on shades while prescription sunglasses not. That is to say, Magnetic eyeglasses consist of two layers of separate lenses. And the outside layer of lenses are connected by spring mechanism in clip-on eyeglasses. And you can take on and off the outside lenses as you like. Please don’t think the two layers of lenses are troublesome. They have different functions. The inside lenses are usually made of regular transparent prescription lenses for vision aids, while the outside lenses are made of dark polarized lenses for eyes protection from the intense sun.
The distinctive structure of the magnetic eyeglasses determines the function of the sunglasses. While staying indoors, you can take off the outside lenses and take the eyeglasses as a pair of regular prescription eyeglasses. While outdoors, you can take on the outside lenses and take the eyeglasses as a pair of prescription sunglasses.
Nevertheless, some people may think that the magnetic eyeglasses must-be a heavy device since they have two layers of lenses. In fact, those eyeglasses almost have the same weight as a pair of sunglasses,  because most of them are made of light weighted plastic materials, and their lenses are very thin. So, you don’t worry about the weight of the glasses. If you are suffering vision problem, why not try a pair of magnetic eyeglasses? They can help you save money used for buying another pair of prescription sunglasses.