In order to prevent myopia, children need to develop good eye habits, ensure enough outdoor sunlight activity time every day as well as regular eye monitoring. 1. Good eye habits: Unhealthy eye habits are the main cause of myopia, so try not to use your eyes in a dim environment, moving environment, avoid excessive use of electronic products such as TVs, computers, cell phones, etc., and avoid long hours of close writing or reading. 2. Outdoor sunlight activities: Sunlight can make the retina produce dopamine, which can inhibit the growth of the eye axis and slow down the occurrence or progress of myopia. More than 2 hours of outdoor sunlight activity a day will help prevent myopia in children. 3. Eye monitoring: A refractive development profile can be established for children around the age of 3, and changes in visual acuity, eye axis and refractive status can be regularly monitored to prevent myopia. Children can prevent myopia through a variety of methods. If myopia occurs, it is important to consult a doctor in a timely manner for examination to determine whether it is pseudomyopia or true myopia, and then determine the specific treatment plan to avoid the rapid progression of myopia.