So what should we do if our child is already nearsighted? Optical correction is necessary, and there are many kids eyeglasses online lenses on the market that have certain myopia-delaying functions to choose from.

For example, the kid's eyeglasses online lens is designed based on the principle of peripheral retinal farsightedness defocus, which can delay the progression of myopia to a certain extent and require regular follow-up.

For kids eyeglasses online myopia prevention and control, in addition to understanding the principles, we also need to understand the feasible methods to effectively reduce the myopia rate and high myopia of our next generation of children, and give them a bright future world.

The first thing we need to discuss is "prevention", which means that for children who have not yet developed myopia, we try our best to make them develop myopia later or even not.

The purpose of this "prevention" is to extend the age of a child's first myopia as much as possible, because we say that the earlier a child develops myopia, the faster it develops and the harder it is to control it.

Now let's talk about "control" again. The so-called "control" refers to children who are already nearsighted. We try our best to control the development of their degree. So, what are the standards for control?

For reference, the first is within 600 degrees of myopia, and the second is within 26 millimeters of axial length. Why are these two numbers used as the standard for myopia control? Once one of these two numbers is exceeded, the eye enters the category of high myopia.

The mechanism of myopia, currently the most common type of myopia is axial myopia, which refers to myopia caused by elongation of the eye axis.