For kid's eyeglasses near me products with high adjustment lag, such as progressive multifocal, bifocal, and bifocal+prism, certain effects have been achieved.

Mild regulatory lag will not have symptoms, as the human brain can tolerate slight blurring. However, if you look too close or for too long, the adjustment lag will also increase. In this way, blurry images on the retina will be perceived by the brain, the retina will grow towards the focal point, the eye axis will increase, and myopia will increase.

A typical representative is progressive multifocal and anti-fatigue childrens glasses, which mainly solve the problem of fatigue.

Long-term close-range use of the eyes can cause eye fatigue, leading to a decrease in eye-focusing ability (lag in adjustment is the manifestation of decreased adjustment ability).

Children who are in a state of long-term adjustment lag will develop their myopia degree faster than normal children because their eyes will be more fatigued. To reduce this fatigue, the eyes will move the retina back a bit, which will increase the axial length of the eye and the degree of myopia.

So, if a child's myopia is simply caused by excessive close-up, and their eye axis is within the normal range, they can choose this type of children's glasses.

Peripheral defocused frame glasses were also one of the earliest defocused glasses used for myopia prevention and control. Some believe that its earliest discovery originated from corneal reshaping lenses.

Corneal reshaping lenses were originally used to help wearers flatten the cornea and improve naked-eye vision in a short period. However, during the application process, we found that it has a certain effect on delaying the development of myopia.