Pediatric myopia is myopia, a type of refractive error that differs from the characteristics of adult myopia. Myopia (nearsightedness) refers to a refractive state in which parallel light rays pass through the refractive system of the eye and fall in front of the retina when the eye is relaxed. Pediatric myopia is a condition that develops in childhood, has abnormal regulation, is progressive, and is easily disturbed by multiple factors. How to prevent myopia in children? 1, usually pay attention to nutrition, eat more fresh vegetables, do not be partial food. 2.When reading books or newspapers, keep your eyes at a distance of 30 centimeters and 45 degrees from the writing, and avoid using your eyes for a long time at a close distance. 3.Avoid reading books and newspapers in cars, places with insufficient light velvet or strong light velvet, when reading books, the light source should be evenly projected from behind or left oblique side. 4.Avoid using unclean towels or public face washing utensils to prevent infection. 5.Do enough sleep and outdoor activities, and look at green plants from time to time. 6.Do eye care exercises 3-4 times a day. 7.Don’t watch TV, play computer or video games for a long time, and keep your eyes away from the fluorescent screen. 8.Regularly make vision checkups and treat problems promptly. From the age of 4, parents should regularly check the child’s vision, pay attention to whether the child’s vision is normal, whether there is myopia, strabismus, amblyopia, and timely diagnosis and treatment of any problems.