When it comes to glasses, some people may change it once a year, while some people may change it every few years, and some people think that as long as the glasses are not damaged, they do not need to be replaced. So, how often should glasses be replaced?
The first thing we need to know is that glasses are worn every day, and they will become "old" after a long time. For example, the frame is easy to loosen or deform.
Secondly, the lenses of glasses that have been used for a long time are prone to yellowing, scratches, cracks and other wear.
There are also adolescents in the physical development stage, the degree of myopia has not been stabilized, and the degree may change; coupled with the poor eye habits of some myopic patients, these can easily lead to the eyes being unable to correct the current vision.
Therefore, generally speaking, if the patient wears glasses and the degree of the eyes deepens, or the lenses are worn, the glasses are deformed, etc., the lenses or frames need to be replaced in time.
It is important to note that children under the age of 18 should have an eye examination every six months. If the degree changes greatly or the glasses are severely worn, they should replace the glasses in time; while adults are recommended to have an eye examination every year, not only To understand eye health and vision, it is also to check the use of glasses, and comprehensively judge whether glasses need to be replaced.
How to extend the lifespan of glasses?
1. When taking off the glasses and placing them, put the convex side of the lens upwards;
2. It is often necessary to check whether the screws on the glasses frame are loose or whether the frame is deformed, so as to be replaced in time;
3. Do not dry-wipe the lenses with a glasses cloth, use a special cleaning agent for glasses to clean the glasses to avoid wear and tear of the glasses;
4. Avoid putting the glasses in a high temperature environment or direct sunlight, so as not to damage the optical function of the lens.
