Don’t settle for less! Do glasses have a shelf life?

The glasses are not broken and the degree is suitable, so how come they are expired?

Snacks will expire, canned food will expire, I don’t know when it started, but everything has a date on it.

But you know, glasses are like love, they have a shelf life and you can’t just wear them casually!

Most people have a misunderstanding about the use of glasses. As long as the frame is not damaged and the lens is not broken, they can be used forever. However, have you ever considered the wear and tear of glasses after wearing them for such a long time? In fact, like food, medicine, cosmetics, etc., glasses also have a shelf life .

How long is the shelf life of glasses? Generally, the service life of regular glasses is within two years. Glasses that are "overused" may have problems such as lens wear, frame deformation, lens detachment, blurred vision, etc. From the perspective of eye health, the "shelf life" of glasses worn by people of different ages will be different.

01 Children and adolescents: Wear and cherish it

Children and adolescents are in the growth and development stage, and their eyes are used at the peak period, so their myopia changes very quickly. Due to long-term close-up use of the eyes, myopia is easy to deepen. It is recommended that children and adolescents undergo medical optometry at least once every six months before the age of 18. If the old glasses cannot correct their vision to the normal level of the same age, they need to consider re-fitting glasses. In addition, children have poor maintenance habits for glasses, and often have deformed frames or worn lenses. If it affects wearing, it is recommended to replace them in time. Especially for adolescents and children wearing functional lenses, more attention should be paid to regular review and inspection of the wearing of glasses to ensure that the functional lenses play the maximum role.

02 Adults: check up once a year

The degree of myopia in adults is relatively stable, but it does not mean that it will not change. It is recommended to have a medical eye examination every 1-2 years. Based on the results of the eye examination and the needs of work and life, the doctor will determine whether it is necessary to re-fit glasses. Patients with high myopia with a degree of myopia exceeding 600 degrees should also undergo regular fundus examinations to prevent the occurrence of fundus diseases.

03 Elderly people: need to change lenses

The presbyopia of the elderly will change with age, but the deepening of presbyopia is relatively slow, and reading glasses only need to be worn when using the eyes at close range (for example: looking at mobile phones, reading books, reading newspapers), and the frequency of use is relatively low, so there is no specific time limit for replacing reading glasses.

If middle-aged or elderly people who are already wearing reading glasses still feel tired and strenuous when reading, it is very likely that the degree is inaccurate or has changed. It is recommended to see a doctor in time and have a doctor check to determine whether the glasses need to be replaced or whether there is a possibility of other eye diseases.

How to extend the life of glasses? Don't wipe them directly with a glasses cloth! If there are dust and sand particles on the lens, wiping them directly is equivalent to rubbing the lens with these dust and sand particles.

The right approach

① Use both hands to take off and put on glasses, and place the lenses on the table with the front facing up;

② Check the screws on the frame frequently to see if they are loose or deformed, and adjust them in time if any problems occur;

③ Clean your glasses promptly and correctly. If the lenses are dirty, it is recommended to clean them with clean water or diluted neutral detergent, and then wipe them gently with a special glasses cloth;

④Do not place in direct sunlight or high temperature environment to avoid damaging the optical function of the lens.

The optometry department of Aier Eye Hospital affiliated to Wuhan University reminds: It is recommended to have your eyes re-tested when changing glasses, and re-determine the latest glasses fitting parameters based on the examination results. It is not advisable to only fit glasses based on your previous degree. Vision and glasses fitting parameters will change over time. Fitting glasses according to previous degrees may not match your current eye condition. A pair of glasses that are comfortable to wear depends not only on accurate medical optometry, but also on the precise glasses fitting and processing. Optometry and glasses fitting is a scientific and rigorous process, and cannot be sloppy!