Most people now use special resin lenses. One thing about resin lenses is that the lenses are easily scratched and scratches appear. If you don’t pay attention to the use and protection in the previous life, it is easier to damage the lens. The resin material is very delicate, as long as there are scratches on the mirror surface, it will easily affect the light correction, so it cannot improve the effect of myopia, but will bring adverse visual effects to consumers who wear myopia glasses.
Many people wear glasses only when the temples are broken or other places are damaged and the glasses cannot be worn, they will think of changing glasses, which is very bad. Glasses should be inspected at any time for damage, scratches, or if they affect vision. In the case of normal use, there is no problem with the use of general glasses for about 1-2 years, but given the life of the glasses, the glasses should be replaced in 1 to 1.5 years. Teenagers need to pay more attention to this problem. It is best to have an optometry every three months to detect changes in the degree in time and replace the glasses in time.
1. Regular review after glasses for children and teenagers, if the prescription increases by more than 50 degrees, it needs to be replaced!
It is necessary to go to the hospital for review on time and change glasses regularly. Children and adolescents are in the stage of growth and development, which is the peak period of eye use, and the degree changes very quickly. Due to long-term close-range use of the eyes, the eyeballs will experience ciliary muscle spasms, and myopia will easily deepen. Children and adolescents need to go to a professional eye hospital for reexamination every 3 months or half a year. If the glasses are no longer suitable for the child, the glasses should be replaced in time.
2. Adult glasses: Generally, they should be replaced once a year and a half to two years!
Because the prescription is relatively stable, the optometry frequency and initiative of adults are far less than that of children and teenagers. Some adults even don’t bother to do optometry, but just go directly to the original glasses prescription. These are all incorrect practices. Medical optometry is also required for adult glasses. Adults should generally replace their glasses every one and a half to two years.
3. The reading glasses of the elderly should also be replaced regularly!
Out of frugality, many elderly people wear reading glasses for several years or even ten years. There is no uniform time limit for the specific replacement of reading glasses. When the elderly feel tired of wearing glasses and reading newspapers, and their eyes are sore and uncomfortable, they should be replaced. Do not be greedy for cheap and convenient matching reading glasses! Wearing glasses at will can cause dizziness, headache, nausea, and other discomforts. The elderly should have an optometry and a fundus check every one or two years.