It is of great significance to insist on full outdoor activities during the day to prevent myopia and its aggravation. Children and adolescents should obey the arrangement of parents and teachers and ensure that they have more than 2 hours of outdoor activities during the day.
2.
Maintain correct reading and writing posture.
Incorrect reading and writing posture will increase the risk of myopia. When reading and writing, you should use tables and chairs suitable for your sitting height, with good lighting, and maintain the correct posture of "three ones", that is, your eyes should be one foot away from the book, your chest should be punched from the edge of the table, your fingers holding the pen should be one inch away from the nib, and you should not use your eyes for more than 40 minutes. Do eye exercises seriously.
3. Avoid bad reading and writing habits
To prevent myopia, we should avoid bad reading and writing habits, and don't read, write or use electronic products when walking, eating, lying in bed, shaking cars, under dim light or direct sunlight.
4. Ensure adequate sleep and reasonable nutrition.
Adequate sleep and reasonable nutrition are the basis to ensure the health of vision. Children and adolescents should obey the schedules of parents and teachers, and the sleep time of primary school students should reach 10 hours, 9 hours for junior high school students and 8 hours for senior high school students. Usually, you should be balanced in nutrition, not picky eaters, not partial eclipse, not overeating, eating less sugar and eating more fresh fruits and vegetables.
5. Control the time of using electronic products
Staring at the screens of mobile phones, computers, televisions and other electronic products at close range for a long time will do harm to your eyes. When using electronic products, eyes should keep a certain distance from the screen, and the screen brightness should be moderate. After studying with electronic products for 30-40 minutes in your spare time, you should have a rest and relax 10 minute. The use of electronic products for non-learning purposes shall not exceed 15 minutes at a time and 1 hour every day.