Avoid reading continuously for a long time, do far-seeing breaks every 30 to 45 minutes, and do not use your eyes again. Read and write with moderate light, do not lie down to read books or cell phones. Maintain proper reading and writing distance, and hold the pencil with correct posture. Ensure sufficient sleep, preferably with the lights off. Do eye exercises, participate actively in outdoor activities and sports, and do more thrushes. Insist on regular vision checkups and vision correction at home, and promptly find out that your teenager’s vision is declining, go to the hospital and replace glasses in time. Pay attention to dietary balance, and make sure to eat less sweets, otherwise myopia will easily deepen. For children who are prone to deepening myopia, early intervention is necessary, such as wearing keratoplasty lenses or glasses that reduce paracentral defocus, such as Medecor glasses.