Do you know how terrible it is to not change the lenses for a long time? !

Yellow lens

Reduce visual clarity, increase the burden on the eyeballs, and deepen myopia.

Scratches on lens peeling

Affect the refraction effect and optical correction performance of the lens, and lose the effect of improving vision.

Degree does not match

The myopia degree does not match the previous myopia degree, and there are symptoms such as blurred vision, dizziness, eye pain, etc. According to relevant experts, long-term non-replacement of lenses can easily make the eyes tired, sore, and painful. In severe cases, it may even cause a series of eyes. Department of disease.

Lenses also have a "shelf life"

Food will change its taste after a long period of time. Cosmetics should be used up on the specified date. Expired drugs cannot be taken... In all aspects of our lives, every item has its "shelf life", and lenses are naturally no exception.

So, how long is the service life of the lens? How often should people change their lenses to be reasonable?

Teenagers: It is best to change the lenses once a year

Adolescents use their eyes during the peak period, and the degree of change at this age is relatively faster. Due to excessive use of eyes at close distances for a long time, myopia is easy to deepen. People who often overuse their eyes are advised to refraction once every six months. If the lenses are no longer suitable for changes in the refractive power of myopia, they should be replaced in time. Otherwise, it is not only easy to cause myopia to deepen, but also affects learning and physical and mental health.

Adults: Replace lenses every two years

The normal service life of ordinary resin lenses is generally about two years. During this use, the lenses will experience different degrees of wear, including scratches, yellowing, etc., which will affect the optical correction function of the lens and even cause myopia. The degree deepens.

Elderly: regular replacement

The reading glasses of the elderly also need to be replaced regularly. However, because the degree of reading glasses increases slowly, there is no strict requirement on the replacement time of reading glasses. However, when the elderly wear glasses to read the newspaper, if they feel tired, their eyes are sore and uncomfortable, they should go to a regular eyeglass fitting institution for optometry and replace the lenses in time.

Of course, each person's specific situation is different, and the frequency of review and replacement of the lenses also varies from person to person. It is recommended that customers perform regular maintenance and cleaning of the lenses after they are fitted with glasses, and at the same time go to regular institutions for optometry according to their own conditions.