I. Introduction
The eyes are the windows to the soul. The importance of eyes in daily study and life is obvious. However, many students do not pay attention to their eye hygiene, resulting in adverse consequences.
In the process of learning, myopic children will have visual fatigue such as eye pain, dry eyes and eyeball congestion after a long time; After studying for a period of time, children have to rest, so nearsighted children are more tired! Myopia affects attention and answering speed. Myopia is easy to cause nervous system adjustment disorder, brain fatigue, dull thinking, desertion and other symptoms, and the quality of lectures and learning efficiency decline. Long-term brain fatigue will affect the brain's reaction speed and eventually lead to a decline in test scores. Myopia reduces students' self-confidence. If we don't eliminate the above-mentioned incentives that lead to learning disabilities in time, it will cause emotional confusion, doubt one's ability, feel depressed and sad, make children lack self-confidence, and have a negative impact on learning and growth.
According to the authoritative report of relevant institutions, the reliability of a person suffering from congenital myopia is not great, accounting for less than 5% of myopia, but the situation of myopia among students is becoming more and more serious. The myopia rate of students is still on the rise. Therefore, paying attention to the formation of myopia is of great significance for preventing myopia and prompting students to have a correct understanding. Then, how can students prevent myopia, understand the harm of myopia and investigate the reasons for the high myopia rate? Therefore, I decided to study this problem.
Second, summary:
In this paper, the causes of myopia in adolescents and how to prevent myopia are systematically investigated, and the methods to prevent myopia and the direction of further research in the future are put forward.
Third, the object and method of investigation
All students in class X of XX primary school in X city have good family economic conditions and regular work and rest.
54 students in the class conducted a survey through questionnaires and discussions.
Fourth, the content of the investigation
(1) Discussion and investigation
Lens A: This male student is not friendly to eyes at all. Whenever he has free time, he plays video games. Staring at the game machine intently is more attentive than listening in class. After a long time, my eyes blurred, so I rubbed them with my dirty hands and continued to play. It was not until dark that his father found him, and he reluctantly went home with his schoolbag on his back.
Lens B: This boy likes watching TV best. When I came home from school, I just finished my homework and sat in front of the TV. After dinner, he sat in front of the TV again, and it was very close to the TV. He wants to watch both children's programs and TV plays. It was not until the words goodbye appeared on the TV screen that he yawned and narrowed his half-asleep eyes to go to bed.
Lens C: These two female students have a bad attitude towards eyes, too. You see, they are reading while walking, muddling along, and they don't know when they will get home.
Lens D: Xiaohong is a little book fan. She likes reading extracurricular books. It's a good thing to increase her knowledge, but she always reads in bed after finishing her homework at home, ignoring her mother's criticism.
Scene E: Xiao Fang is traveling with her parents. The car bumped along the rugged mountain road. But Xiao Fang took the book and looked at it with rapt attention. My colleague's aunt reminded her that she didn't care, so she took care of it.
Some students are getting nearsighted because they usually don't pay attention to protecting their eyes, so they have to wear glasses. Wearing a pair of heavy glasses on the small bridge of the nose is both tired and ugly, which also brings a lot of inconvenience to their life and study.
(2) Questionnaire survey
Visual acuity survey of 54 students: naked eye vision
Degree of myopia of students wearing glasses:
(3), data sorting
Investigation on myopia of 54 students in class X of XX primary school in X city: 14 students have poor eyesight and 3 students wear glasses.
An analysis of the survey results of verbs (abbreviation of verb)
1, there are many factors that cause myopia, both congenital and acquired.
There are more and more nearsighted students, which seriously affects everyone's normal work and study.
3. Adolescent myopia is mostly due to poor eye hygiene habits, leading to pseudomyopia.
4, poor eyesight is not treated in time, and bad eye habits are not corrected, which will develop into true myopia.
Countermeasures of intransitive verbs
(1) Teenagers should pay attention to nutrition during their development. Malnutrition can cause myopia.
(2) Schools should strengthen the cultivation of students' good writing habits and pay attention to students' eye hygiene. Reduce the time for students to do homework, advocate appropriate activities, especially ten minutes between classes, so that students can adjust their eyes.
(3) Parents should pay more attention to their children's growth, educate their children to read books and watch TV correctly, do not read books or watch TV in bed, and pay attention to ensuring 9 hours of sleep.
(4) Schools should strengthen the publicity and correct posture of eye exercises, and don't let eye exercises become a mere formality.
(5) Pay attention to learning style, reduce the time spent with eyes, and use mouth and ears instead.
(6) Adjust the light source and choose the light source that is most suitable for students to study.
(7) Myopia students should go to regular hospitals for optometry and wear appropriate glasses for correction. Otherwise, your eyesight will only get worse.
Investigation report on myopia II. Propose a question
1. Why are the students in our class nearsighted? How do you feel?
2. How to prevent myopia?
3. What is the myopia rate of students in China?
Second, the survey method
Consult books about myopia, read newspapers and surf the internet; Understand the causes of myopia and the myopia rate of Chinese students; How to prevent myopia?
Third, investigation and data collation.
1. Through visiting and observing, I know the reason why our classmates are nearsighted: most of them are too close to books when they write their homework. Many students feel uncomfortable after myopia, and it is inconvenient to do things. According to statistics, the myopia rate in our class is 42.7%.
2. Through surfing the Internet, I know that I should pay more attention to green plants to prevent myopia.
By consulting books, I know that the myopia rate of primary school students in our country is 22.78%.
4. I visited many classmates, and one of them said: When eating, the hot air of food blurred my glasses, and sometimes I couldn't even see the food. It's troublesome to take off your glasses and put them back.
Four. conclusion
1, the myopia rate in China is very high, with primary school students reaching 22.78%, junior high school students reaching 55.22%, senior high school students reaching 70.34% and college students reaching 76.74%. Look at this series of data, we should protect our eyesight.
2. The main causes of myopia:
(1), watching TV too close for too long;
(2) Incorrect posture when writing homework;
(3) reading in the sun with too strong or too weak light;
(4) not doing eye exercises seriously;
(5), genetic factors and other reasons.
In order to prevent more students from being nearsighted, here are some suggestions:
(1), see more green plants;
(2) When reading, doing homework or reading, the posture is correct, so that the eyes are one foot away from the book, the chest is punched from the desk, and the hand is one inch away from the pen tip.
(3) Don't read while sitting in the car or walking, and don't read while lying down.
(4) Keep doing eye exercises twice a day.
(5), don't let the eyes in a state of fatigue for a long time.
Students, the eyes are the windows of the soul, let's take good care of it!
Myopia survey report 3 1. Ask a Question
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 myopia rate in China is close to 30%. Many people in our class are nearsighted. Why are you nearsighted? How to prevent myopia? So, I made a survey about myopia of primary school students.
Two. investigation method
1. Consult relevant information.
2. Investigate and ask classmates.
3. Through the blog questionnaire survey.
Three. Investigation and data collation
information channel
Involve aspects
Subject content
Blog questionnaire
Causes of myopia
Doing homework too late, not getting enough sleep, watching TV too much, playing computer, consuming a lot of protein, etc.
network media
Myopia condition
The myopia rate in China is close to 30%, the myopia rate of primary school students is 22.7%, the myopia rate of junior high school students is 55.8%, the myopia rate of senior high school students is 70.3%, and the myopia rate of college students is 80%.
How to prevent it
We should form the good habit of using our eyes.
Four. conclusion
1. Analysis of the main causes of eye myopia: Most people usually do not pay attention to protecting their eyes, which leads to myopia. The results show that incorrect 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. For example: watching TV too close, watching TV for too long, watching TV pictures too deep, doing homework incorrectly, reading in too strong sunlight, reading in too weak light, being in front of the computer for a long time, unreasonable diet, watching laser, reading in the carriage, genetic factors, not doing eye exercises seriously.
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