How should parents guide their children to use their eyes scientifically during summer vacation? During the summer vacation, parents should guide their children to develop good living habits and scientific eye usage methods, which are the most important means of preventing myopia. Firstly, increase outdoor activities. Teenagers should maintain an average of at least 3 hours of outdoor activities per day. Secondly, reduce prolonged close eye contact. During the summer vacation, children have homework to complete. To prevent myopia, they should follow the "20-20-20" formula when using their eyes at close range, which means that every 20 minutes of close range use, they should focus their gaze on an object 20 feet or 6 meters away for at least 20 seconds. Reducing prolonged close eye use is the key to preventing myopia. Thirdly, maintain good lighting and illumination. Do not read under strong or low light, indoor lighting with a 40 watt fluorescent lamp should be 1.4 meters away from the desktop; If using a mobile phone or tablet, the screen brightness should be appropriately reduced. Fourth, ensure sufficient sleep and a balanced diet. Adequate sleep is the best way to relieve visual fatigue, and diet should pay attention to balanced nutrition and avoid high sugar diets. Pseudo myopia is caused by the spasm of the ciliary muscle due to prolonged close eye contact in children. Before children and adolescents undergo optometry examination, regular dilation of the pupils is necessary. After dilation, the spasm of the ciliary muscle will be relieved, and pseudomyopia will naturally disappear. After experiencing pseudomyopia, it is important to adjust lifestyle habits and reduce the use of electronic devices in a timely manner. Otherwise, over time, pseudomyopia may also transform into true myopia. What are the methods for correcting myopia? How effective is it? What are the common misconceptions about myopia surgery? Common methods for correcting myopia include wearing glasses and undergoing myopia surgery. After wearing OK lenses, the cornea can be shaped by pressure to reduce corneal refractive error, which can correct myopia by wearing them only at night. Research has shown that OK lenses have a role in preventing the progression of myopia, but their long-term effectiveness and safety in myopia prevention and control still need further verification due to their contact with the cornea. Children must undergo a thorough evaluation before using OK lenses and strictly follow the doctor's advice. Once diagnosed, all myopic patients should be corrected with glasses and undergo regular optometry. Otherwise, over time, it will not only accelerate the development of myopia, but also affect the normal visual development of children. At present, myopia surgical treatment mainly includes corneal refractive surgery and intraocular refractive surgery. It should be noted that surgical correction must be performed after the age of 18. Adolescent eye development is not yet complete and surgery is not recommended. Before surgery, it is necessary to ensure that myopia no longer progresses and undergo strict preoperative evaluation. The most common misconception currently is that many people believe that surgery can cure myopia. Strictly speaking, these surgeries should be called "glasses removal" surgeries, which use surgical means to apply the refractive power of glasses to the eyeball to match the overgrowth of eyes in myopic patients. Therefore, surgery cannot solve the structural changes in the eyeball caused by myopia itself. For patients who have undergone myopia surgery, regular dilated pupil examinations of the fundus are still needed every year to prevent complications related to myopia. (New Society)