Usually in our daily lives if we can do the following number of points, then our eyeglasses will be more durable and more beneficial to your eyes. Always wear the glasses: Some myopes are worried that wearing glasses will deepen the myopic degree, so they often wear and take off the glasses. Actually, this worry is needless. The order to wear glasses is to correct your eyesight and alleviate worse myopia. If you do not wear glasses oftentimes, you would need to narrow your eyes to stare at things. If you do such eye movement for a long time, Overstrain and tired state, while your eyes will be spastic due to at overadjustment state, thus deepening the myopia degree.
Of course, whether put them on or take them off should be differented from person to person. If the degree is less than 200, you can put glasses on when you look far and take them off when you look near. To often rub the lens: the lens surface is very vulnerable to dust, water vapor and oily and so on covered. Then putting on the cheap glasses would have felt blurred vision, clarity decreased, it should be promptly wipe with a soft flannel. At the same time, it's best to wash it with water every day in order to maintain a high degree of clarity of lens. What should pay particular attention to is that the lens is most afraid of scratches, broken, and even a small gap of the edge will also aff If this happened, you should change for a new glass in the professional shop. Take care the frame: the frame is composed by nose pad, body and leg. The installer would compare the position of eye pupil with the real pupil distance from different users. According to different types of faces, opometrist should adjust nose pads and the angle of inclination to make sure the camber of lenses' center in the circle of eyeglasses and make the satisfied glasses for people. Shortsighted people should wear correct Often wipe the body, legs, lens ring of the glasses with a dry flannel, nose pads screw should be fixed in time when lost, the body, legs of the glasses must not be arbitrarily pull twisted, replace promptly when broken. The broken legs are never supposed to be tied with adhesive tape or things like that, which will cause deviation of the optical centre and decrease the definition degree besides not beautiful. This is likely to optical lens optical center and the human eye pupil center in coincidence, it will produce prism effect, and people see the object image displacement occurs. The people who wear prescription eyeglasses can only see the true face of the object through self-regulation, such as distortion of glasses, thus it will increase eye-strain; if wearing for a long-term, vision will decline, or happen squint to anyone who is serious.
After a long-time use, the frame will be out of shape, the quality of glasses will also alter. Good lenses have many features. For example, the embryo is white, the transmission of visible light is good, the color of the film is light and the shapes of visual things will not change by moving lenses up and down. Normally, the high-quality lens will have good quality after two to three years use, while the poor-quality lens, especially the poor-quality colophony lens are difficult to be used for more than one year. Once you find that the glasses turn yellow, the film falls off or fluff, you'd better go to hospital for replacing new glasses via optometry.