Speaking of glasses, some people change them every few months, some people change them every few years, and some people even spend their entire youth with a pair of glasses, while more than one-third of people never change their glasses until they are damaged. Today, I will give you a popular science on the life of glasses…
●Glasses also have an expiration date●
To be on the safe side, most things have a use-by or shelf life, and glasses are no exception. In fact, compared to other things, glasses are more perishable items. First of all, after the glasses have been used for a long time, the frame will deform and become loose. Secondly, after the lens is used for a long time, the light transmittance will decrease and the lens will turn yellow. Third, the diopter of the eyes may be increasing, especially for young people. When myopia deepens, old glasses are often not suitable for use.
●How often should glasses be replaced?●
Although glasses are with us day and night, we don’t have a good sense of maintenance. A pair of high-quality glasses, in addition to high-quality frames and lenses, after-sales care and maintenance of glasses is also very important. Once the glasses are scratched or scratched, it will affect the normal use of the lenses. If the eye degree deepens, the lens is worn, the glasses are deformed, etc., the lens should be replaced in time. Ophthalmologists suggest that re-examination should be carried out every six months, and whether it needs to be replaced according to the re-examination situation.
●Re-examination before changing glasses●
When changing glasses, many people like to order glasses according to the previous degree, which is even more inaccurate. Because the eye degree will change over time, especially for young people and the elderly, if you simply follow the previous degree of glasses, you will miss a best opportunity to correct your vision. The same is true for contact lenses, each time before wearing glasses, we must remember to re-examine. Ophthalmologists reminded that from a clinical point of view, after wearing glasses, many people will wear them until the glasses can no longer be used, which is not advisable.
●How to Extend the Shelf Life of Glasses●
Glasses need to be replaced regularly because glasses also have a service life. Doing a good job in daily care is also key to prolonging the service life of glasses.
We can take off and put on the glasses with both hands, and put the convex lens upwards when placing it on the table; then often check whether the screws on the glasses frame are loose or whether the frame is deformed, and adjust in time if there is a problem; do not dry wipe the lenses with a glasses cloth, it is recommended to use Clean with special detergent or neutral detergent for glasses. When not wearing glasses, try to wrap the glasses with glasses cloth and put them in the glasses case. When taking off the glasses temporarily, do not let the lenses come into contact with hard objects such as the table, and put the lenses upward. Do not place the glasses in a high-temperature environment to avoid discoloration or deformation of the lenses.
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Post time: Aug-30-2023