If you take the following methods to clean glasses, you can avoid some unnecessary trouble. Before you wipe lens, you had better to use tap water for flushing, and also you can use neutral soap or special detergent cleaning. Then, use special lens to make them clean. Cleaning frame between the hairlines, you can use soft old toothbrush, scrub gently and remove dirt. In daily life, you should try to avoid high temperature, because high temperatures will due to the membrane layer and lens base material have the inconsistency of heat bilges cold shrink, causing membrane layer damage or even fall off. Also you should avoid strong organic solvents, such as acetone, ether and perfume and so on, because these organic will have effect on the lens surface. In addition, you should also develop the habit to place glasses well. To prevent glasses by weight, you can keep the glasses placed in collection box.