Adults

As the refractive state of adults tends to be stable, many people will neglect optometry and vision examination, just according to the original prescription of glasses, which is actually wrong.

During the use of optical lenses, the surface will be worn to some extent. Resin lenses can absorb UV rays, but they can also turn yellow as they age, which can affect light transmittance. With the change of age, the different eye environment and degree, the refractive state of the human eye has been changed, so adults have to re-optometry every one to one and a half years.

Teenagers

Vision varies according to development, and generally tends to be stable by the age of 18 as an adult, but that doesn't mean you can "wear a pair of glasses to black." Therefore, it is necessary for children and teenagers to change their glasses regularly.

Teenagers are in the growth and development stage, is the peak of eye use, the degree changes quickly, because of long-term close eye use, myopia is easy to deepen. Therefore, it is recommended to review the glasses every 3 months or half a year. If the glasses are no longer suitable for children, they should be replaced in time.

Reading glasses

Out of frugality, many elderly people have worn their reading glasses for years or even ten years, and this traditional concept brings them eye strain. There is no uniform time for the replacement of reading glasses. When the old people wear glasses to read the newspaper and their eyes are sore and swollen, they should be replaced. Experts remind, with reading glasses should not be cheap, convenient, casually wear glasses, otherwise it will cause dizziness, headache, nausea and other discomfort. It is recommended that the elderly change their glasses every one or two years