Prevention of Ray Ban RB2140 Wayfarer Sunglasses Black Frame Crystal Gray Gradient Lens syndrome, first of all, to correctly select and reasonable use of Cheap Ray Bans sunglasses. To select the distance between the eyes of the individual and the individual face is consistent with the framework of glasses. Also, as far as possible, not wearing large sunglasses, must be worn to shortened the duration of wearing Cheap Ray Ban Aviator glasses, pick a mirror after fingers along the orbit, on both sides of the nose massage 10-20 times. Once the sunglasses syndrome occurs, should immediately stop wearing sunglasses.
Ray Ban Outlet Anti reflective protective lens: the lens is in coated on the surface of a thin layer of magnesium fluoride, to prevent light reflection, let you see things more clearly and is not affected by the light interference. To detect whether your glasses really use anti reflective lenses, the glasses can be aligned with the light source, if you see the purple can be green reflection, it is said that the lens is coated with anti reflective protective film.