Due to the incomplete development of the child's eyeball, the axial length of the eye will continue to increase as the eyeball grows. So once children under the age of 18 become nearsighted, current technology cannot prevent the degree from increasing. The main function of myopia management kids eyeglasses near me for teenagers is to slow down the rate of degree growth.

After correction with regular nearsighted kids eyeglasses near me, the center of the line of sight falls precisely on the retina, allowing for clear vision. But ordinary glasses have single-lens lenses that are not perfectly matched with the cornea, and the central line of sight is corrected to fall precisely on the retina.

And the surrounding light, after correction, fell behind the retina instead. The eyeball has the characteristic of focusing, and to focus the line of sight, the eyeball axis tends to become longer, allowing the surrounding line of sight to also fall on the retina.

But in this way, the central line of sight is no longer clear, and the degree of myopia has increased again. However, defocusing lenses are a combination of multiple lenses, with the center still serving to correct myopia, and the addition of farsightedness defocusing lenses in the periphery, allowing peripheral imaging to focus in front of the retina.

That is to say, allowing the central and peripheral areas of the same kid's eyeglasses near my lens to play different roles so that the visual center and peripheral vision can be focused on the retina as much as possible at the same time. In this way, the elongation of the eyeball axis caused by focusing is slowed down, which also plays a role in controlling the rapid increase of myopia degree.