How many years can you wear a pair of glasses?

When it comes to glasses, many people have no idea about their lifespan. Some people change their glasses every one or two years, some every many years, and some people never even think about changing their glasses as long as they are not broken. So, how often should glasses be replaced? Will long-used glasses affect vision?

Glasses also have an expiration date

Many people think that glasses are not food or medicine and do not have an expiration date. In fact, compared with other items, glasses are more consumable. First, we use glasses every day, and the frames are prone to loosening or deformation after long-term use; second, the lenses are prone to yellowing, scratches, cracks and other wear and tear; third, as myopia increases, old glasses cannot correctly correct the current vision.

There are many consequences. For example, the deformation of the frame affects the comfort of wearing; the lens wears out, which makes it easy to see things unclearly due to light dispersion, causing vision loss; and the vision that is not properly corrected, especially for teenagers in the physical development period, long-term wearing of blurry glasses will accelerate the development of myopia because the retina of the fundus cannot receive the stimulation of clear images.

How often should glasses be replaced?

Generally speaking, if your eye power worsens, or the lenses are worn or the glasses are deformed, you need to replace the lenses or frames in time.

Teenagers and children: It is recommended to replace lenses every six months to one year.

Children and adolescents are in the growth and development period, with heavy academic burdens and great demands for close-up use of their eyes, which can easily lead to myopia. Therefore, children under the age of 18 should undergo an eye examination every six months. If the degree changes significantly or the glasses are severely worn, they should be replaced in time.

Adults: It is recommended to replace lenses once a year and a half.

Generally speaking, the degree of myopia in adults is relatively stable, but it does not mean that it will not change. It is recommended that adults have an eye examination at least once a year, first to understand their eye health and vision, second to check the wear of glasses, and comprehensively judge whether to replace them based on daily eye environment and habits.

How to extend the shelf life of glasses

1. Use both hands to take off and put on glasses, and place the convex side of the lenses upwards when placing them on the table;

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

3. Do not use a glasses cloth to dry-clean the lenses. It is recommended to use a glasses-specific detergent or a neutral detergent to clean them.

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

Kind tips

Everyone's specific situation is different, and the conditions for reviewing and replacing glasses are also different. Experts recommend: After fitting glasses, you should regularly maintain and check your glasses, and replace them in time if there are any problems, to ensure that you are always in a good state of study and work.