First, ensure more than 2 hours of outdoor activities every day.
Outdoor activities are the simplest and most effective way to prevent myopia, and adequate sunlight exposure can effectively prevent the occurrence and development of myopia.
1, the school physical education class and the 30-minute recess should be held outdoors.
2, to ensure more than 2 hours of outdoor activities every day, to promote myopia children and adolescents outdoor activities for more than 3 hours a day.
Second, keep correct reading and writing posture.
Good reading and writing habits can relieve eye fatigue and reduce eye over-adjustment. Keep the reading and writing posture of "one foot, one punch and one inch": the eyes are about one foot away from the book, the body is about one punch away from the desk, and the fingers holding the pen are about one inch away from the nib.
Third, keep good eye habits.
1. Pupils should control the time of continuous reading and writing. Junior pupils should read and write for no more than 20 minutes at a time, and senior pupils should read and write for no more than 30 minutes at a time. When resting, you should go out of the classroom for outdoor activities or overlook.
Middle school students are under increasing academic pressure, so we should pay attention to the combination of work and rest. During school, we should grasp the break time and physical education class activity time, and look out or go outdoors. Take part in outdoor activities as much as possible after school and weekends, take an active part in sports and mediate stress in time. Keep in mind the "20-20-20" principle, use your eyes at close range for 20 minutes, pay attention to distant objects 20 feet (6 meters) away, and relax your eyes for 20 seconds.
3. Improper eye habits can easily lead to eye fatigue and damage vision. Don't walk and read, don't lie or lie prone, don't read in a shaking car, don't read in dim light, and don't read in strong direct sunlight.
Fourth, choose appropriate reading materials.
Reading materials should be optimized, and paper reading materials should not reflect light. The pictures and fonts of reading materials should not be too small, and matt paper books should be selected. The reading materials in the lower grades of primary schools should be mainly in large font, and the font of reading materials in the upper grades of primary schools should not be too small.
For Chinese characters, letters and Arabic numerals in the text, the font size of the characters used in the first and second grades of primary school is large, which should be no less than No.3; The third and fourth grades of primary school should be no less than No.4; The characters used in other grades of primary school, junior high school and senior high school should be no less than No.4.
For the font of Chinese characters, the first and second grades of primary school are mainly regular script; The third and fourth grades of primary school gradually changed from regular script to song style; The rest of the primary school, junior high school and senior high school grades are mainly in Song style.
Air travel, the first and second grades of primary school should be not less than 5.0mm；; The third and fourth grades of primary school should be not less than 4.0mm；; Other grades should be not less than 3.0 mm.
Five, scientific and rational use of electronic products
1, online study time every day, primary school students shall not exceed 2.5 hours, and each time shall not exceed 20 minutes; Middle school students should not exceed 4 hours a day and 30 minutes at a time.
2. The use of electronic products for non-learning purposes shall not exceed 65,438+05 minutes each time and 65,438+0 hours every day.
3. It is suggested that children aged 0 ~ 3 should disable mobile phones, computers and other video screens, and children aged 3 ~ 6 should try to avoid touching and using them. Kindergarten institutions try to avoid using electronic screens for teaching.
Ensure adequate sleep and reasonable nutrition.
Adequate sleep and reasonable nutrition are the basis to ensure the health of vision. To ensure adequate sleep time every day, primary school students should reach 10 hours, junior high school students 9 hours and senior high school students 8 hours. Diet should be balanced, not picky eaters, not partial eclipse, not overeating, eat less sugar, eat more fresh fruits and vegetables.
Seven, use your eyes in a good visual environment.
1. Put the desk by the window so that the long axis of the desk is perpendicular to the window. When reading and writing during the day, natural light should enter from the opposite side of the writer.
2. If there is insufficient light when reading and writing during the day, you can put a desk lamp on the desk for auxiliary lighting, and the desk lamp is placed in front of the writing hand. When reading and writing at night, you should use the desk lamp and the ceiling lamp at the same time, and place the desk lamp correctly.
3. Household lighting should use tricolor light source lighting equipment, and the color temperature of the table lamp should not exceed 4000K (the sunshine is about 4000K one hour after sunrise).
Eight, check your eyesight regularly.
1, the newborn health examination should take the initiative to conduct vision screening and establish refractive development files for children in time.
2.4-6-year-old children should regularly monitor their vision and refractive development every 3-6 months, see a doctor in time when problems are found, find eye diseases and high-risk factors that affect their vision development, and intervene and correct them in time.
3, 6 ~ 16-year-old primary and secondary school students, junior high school students should check their eyesight 2-4 times a year, and go to a regular hospital in time if they find abnormalities.
4. After myopia is corrected with glasses, it should be reviewed regularly, once every six months as far as possible, to control the development of myopia and avoid becoming a high myopia.