How long is the replacement cycle for contact lenses How are contact lenses categorized by replacement cycle?

What is the replacement cycle for contact lenses?

According to optometric research, the life of soft contact lenses is only 2,600 hours, and if you wear them for 10 hours a day, you can only wear them for 8 and a half months, and if you wear them for more than 6 months, 50 percent of the lenses will be defective; therefore, the life span of a pair of contact lenses depends on the time of use every day, and therefore, you should replace the lenses every year in order to prevent defects of lenses due to the deposits; and if the conditions allow, it is better to use frequent replacement or disposable contact lenses. It is best to use frequent replacement or disposable contact lenses.

How are they categorized according to the replacement cycle?

1, traditional: replacement cycle more than 3 months, but not more than 1 year.

2. Frequent replacement type: the replacement cycle is more than 2 weeks, but not more than 3 months.

3. Disposable: lenses as a one-time use of medical devices, do not use or simplify the care and maintenance of lenses, the replacement cycle is not more than 2 weeks; disposable lenses should be worn no more than 14 hours a day, daily, and do not use any care products.