”True” myopia or “pseudo” myopia? True” myopia means that the myopic refractive error does not decrease even after a full pupil dilatation, or decreases by less than 0.5 degrees. Pseudophakic myopia means that after dilating the pupil, the myopia disappears and becomes orthophoric or hyperopic. It is generally believed that this reversible myopia is often the initial stage of myopia development. In between, myopia that is significantly reduced in refractive error after adequate pupil dilatation, but does not return to orthopia, is known as mixed myopia. If parents detect the initial signs of myopia in time and actively seek treatment at the hospital, most children’s vision can be effectively restored. Therefore, whether “true” or “pseudo” myopia occurs during the teenage years, it should be taken seriously to prevent further increases in myopia. Why are adolescents prone to myopia? During adolescence, the developing eye tissue is delicate and fragile. Children at this stage have a wide range of interests, a strong desire to learn, heavy homework, more books, love to surf the Internet, watch TV, and less outdoor activities, and their eyes are in a state of proximity for a long time; in addition, they do not pay attention to eye hygiene, such as reading too close, reading in the wrong posture, reading for a long time and forgetting to rest, which causes the muscles in the eye with the function of regulation to continuously contract, affecting the development of the eye, resulting in the anterior and posterior diameters of the eye too long and forming myopia. How to prevent early onset of myopia? Children should minimize close work and do more outdoor activities to relax their eyes. Don’t ask your child to do too much reading too early. When reading, the light should be adequate, even and steady, and maintain proper posture and proper distance. Eat a balanced diet to ensure good health. How do I get the right pair of glasses for my teenager? The so-called “right pair of glasses” is to achieve the requirements of clear, comfortable and long-lasting vision, the specific prescription process is as follows: 1, exclude other eye diseases 2, adequate dilated pupil optometry 3, try on glasses before prescription 4, refer to the original prescription Note: pure computerized optometry is not desirable, optometry needs to be accurate, frame should be appropriate. How to prevent myopia from deepening? It is important to maintain good eye habits and not to use your eyes for a long time. Paying attention to the light and distance when using the eyes can effectively prevent the development of non-genetic myopia. If you have myopia, you should use your eyes properly and get glasses. What are the dangers of myopia? Myopia will not kill you, but myopia is a lifelong burden, and high myopia can lead to many problems. High myopia has an early onset, progressive increase in the number of degrees, posterior scleral staphyloma (manifested as dilated eyes, liquefied vitreous degeneration, retinal degeneration and atrophy, and decreased corrected visual acuity; the higher the degree of myopia, the higher the incidence), and serious complications, most of which can lead to blindness. The main complications are: retinal degeneration and atrophy, hemorrhage and fissure; subretinal neovascularization (which can cause hemorrhage and affect vision); retinal detachment; cataract; and glaucoma. All of these complications can seriously impair vision and even cause blindness. The vast majority of myopia patients develop myopia before adulthood, and children do not know how to protect their eyesight. Parents should understand and pay attention to the general knowledge of prevention, treatment and control of myopia in adolescents in order to prevent the occurrence or development of myopia and enable their children to have a bright future.