How to buy functional lenses

1. For school-age teenagers, it is recommended to choose anti-fatigue lenses or defocus lenses.

The general anti-fatigue lens is based on the principle similar to the progressive lens, adding a positive degree of 0.50D~ 1.00D in the near-use area of ​​the lens, so that the adjustment function of the eyes can be relaxed when looking near, and the fatigue of the eyes can be effectively relieved.

The working principle of the defocus lens is to form a myopic defocus effect on the peripheral retina, which can effectively delay the adaptive growth of the eye axis and the development of myopia.

2. Most of the young and middle-aged people in this age group are office workers who work on computers for a long time. It is recommended to choose anti-blue light glasses.

Anti-blue light glasses can effectively reduce the continuous damage of harmful blue light to the eyes. Through the comparison and detection of the portable spectrum analyzer, after using the anti-blue light glasses, the blue light intensity emitted by the mobile phone screen has been effectively suppressed, reducing the damage of harmful blue light to the eyes.

Anti-blue light glasses mainly reflect harmful blue light through the coating on the lens surface, or add anti-blue light factor through the lens base material to absorb harmful blue light, thus realizing the blocking of harmful blue light and protecting eyes.

3. For middle-aged and elderly people, it is recommended to choose progressive multifocal glasses.

Because with age, the function of eye adjustment decreases, and presbyopia occurs. For elderly friends who have worn distance glasses, two or more pairs of glasses are usually needed to meet the needs of seeing far, medium, and near clearly when presbyopia occurs. Progressive multifocal glasses can fully solve this series of problems and achieve the effect of "one lens with multiple functions".