According to the survey, there are more than 5 million blind people in China, and the number of people with low vision is nearly10 million, especially children and adolescents, and the prevalence rate is extremely high. According to the latest data from the national student physical health survey, the incidence of myopia in primary school students, middle school students and high school students in China is 22.78%, 55.22% and 70.34% respectively. What's even more shocking is that a survey report says that there are more than 300,000 people who are blind due to high myopia in China. Therefore, students, parents and society pay more and more attention to the prevention and treatment of myopia in children and adolescents. Why are there more and more nearsighted students? What should students do with myopia? Is it just caused by bad eye habits? In order to understand the myopia of primary school students and the related factors that cause myopia, I made a survey on some students in our school.
Second, the questionnaire
1. Are you nearsighted?
A.yes, b no.
2. Why are you nearsighted? (Don't answer unless you are nearsighted)
A, watching too much TV B, sitting improperly C, others
How nearsighted are you?
A./kloc-below 0/00, below B. 500, above c.
Third, the investigation and analysis
Most people usually don't pay attention to protecting their eyes, which leads to myopia. The results show that myopia is the adaptive change of human eyes to the contemporary environment, and its occurrence and development are closely related to the increase of eye activity environment and the imbalance of nutrient intake. Improper use of eyes and inattention to eye hygiene (such as watching TV and surfing the Internet for too long) are the main reasons for the sharp increase of myopia in modern children.
1 Watching TV too close.
Watching TV for too long
The picture density of TV is too deep.
4 posture is not correct when doing homework.
Read a book in too strong sunlight
6 reading in weak light.
Sitting in front of the computer for a long time
8 unreasonable diet
9 observation laser
10 reading in the carriage
1 1 genetic factors
12 not doing eye exercises seriously
Four. conclusion
Through investigation, it is found that the myopia rate of middle school students is on the rise, but middle school students do not pay attention to this phenomenon. Some people even think that they are nearsighted, just wear a pair of glasses. It doesn't matter if you are nearsighted. Many people often blame it on bad eye habits, such as improper reading distance, too dim light, long-term eye use and so on. However, medical research in recent years shows that unbalanced diet, lack of sleep and noise are also important factors that induce myopia in adolescents.
Verb (abbreviation of verb) suggestion
(1) When reading, the posture should be correct and the light should be sufficient. When reading and writing, sit one foot away from the desk, keep your chest away from the desk and your eyes away from the textbook.
(2) Don't read while riding or walking, and don't read while lying down. Read and write 1 hour, overlook 10 minutes, or go outdoors to adjust your eyes and muscles.
(3) Insist on doing eye exercises for ten minutes between classes.
(4) Try to surf the Internet or watch other radioactive things as little as possible. Pay attention to the schedule and don't let your eyes be tired for a long time.
(5) Don't be partial to food, eat less spicy food, and eat more foods containing vitamin C and vitamins A and D. ..
(six) to the ophthalmology department for regular examination, listen to the doctor's guidance, and gradually correct vision or prevent myopia from deepening.