Investigation Report on the Causes of Myopia 1 Part I: Question Raising;
The eyes are the windows to the soul. With a pair of healthy and bright eyes, the colorful world outside can be seen at a glance, so that we can study and live better. But since entering high school, more and more students in our class have put on glasses, and their eyesight is getting worse and worse.
Why are so many people nearsighted? Why can it cause myopia? What are the hazards of myopia? What preventive measures are there?
Is it just caused by bad eye habits?
Two. Purpose of investigation:
To investigate the myopia of students in our school, to understand the causes of myopia, the influence of myopia on individuals and its prevention and treatment programs.
Third, the survey method:
1. Find out the main causes of myopia through online investigation and asking classmates and teachers.
2. Visit local primary schools and junior high schools to understand the incidence and existing problems of myopia among students.
Four: survey results:
1. Phenomenon: According to the latest data from the national student physical health survey, the incidence of myopia among primary school students in China is 22.8%.
55.2% of middle school students and 70.3% of high school students.
2. Causes of myopia
Expert analysis is mainly due to four reasons: students use their eyes too much; Unhealthy eyes; Lack of eye care knowledge; Single diet, lack of eye nutrition. Among them, 63% students spend too much time with their eyes, 60% students don't pay attention to eye hygiene, about 50% students don't do eye exercises seriously, and about 60% students lack eye nutrition supplement.
So the main reason of myopia is reading and studying. This is because students are under great pressure to study, especially in grade three, with more homework and exams, which leads to the phenomenon of two long and one short, that is, long study time every day, long continuous homework time and short sleep time.
Middle school students' eyeballs are in the stage of growth and development, with strong adjustment ability and great extensibility. Long-term fixation on near objects and heavy visual load lead to insufficient rest of eyes, which is the main reason for the progress of myopia. The survey found that most students' myopia began in high school, or the degree of myopia became deeper in high school. Therefore, students must pay attention to the combination of work and rest and relax their eyes in time, such as looking far away and doing eye exercises.
We find that watching TV and playing computer have an increasing influence on myopia. Now that the living standard is high, everyone attaches importance to the quality of life, every household has a TV set, and the computer popularization rate of college students is getting higher and higher. However, these electronic products not only bring prosperity to our spiritual life, but also bring hidden dangers to our health. In fact, these hidden dangers can be avoided, which requires everyone to use these electronic products reasonably.
Other unsanitary situations include wiping your eyes with dirty towels or hands, reading while walking and riding, reading and writing under strong light, and so on. These conditions can not be ignored, because it is the fuse of 20% myopia. As for genetic reasons, we should pay attention to the fact that close relatives can't get married, which increases the chances of future generations suffering from myopia and other diseases.
3. The harm of myopia:
Myopia brings some troubles to people. According to the survey, most of these influences are manifested in life. According to the data,
Myopia has the following hazards to life:
① Poor eyesight brings a lot of inconvenience to life;
② Moderate and high myopia will lead to exophthalmos and eyelid relaxation, which will affect the appearance;
③ The incidence of cataract and glaucoma in myopia patients was significantly higher than that in normal people;
④ Moderate and high myopia, especially high myopia, can easily lead to vitreous opacity, retinal hemorrhage and detachment, leading to blindness;
⑤ Myopia above 600 degrees will produce certain genetic factors, which will not only affect yourself, but also affect the next generation. This is the most terrible thing.
People also consider the influence of myopia on learning. For example, some majors have strict requirements for vision:
① Those whose monocular vision is lower than 1.0 cannot be admitted to marine transportation, ship driving and civil aviation navigation management of science and engineering;
(2) Those whose binocular vision is lower than 1.0 cannot be admitted to police schools, military schools, precision instruments and customs majors;
③ Those whose monocular vision is lower than 1.0 cannot be admitted to dance, music, film and photography majors in medicine and art;
④ Those whose monocular vision is less than 0.8 cannot be admitted to the physical education major.
Harm to physical and mental health:
(1) causes malnutrition and limited thinking.
② Lack of self-confidence and poor adaptability to the environment.
(3) Become a stumbling block to knowledge, job hunting and marriage.
④ Deep myopia can lead to deep eye socket and facial deformation.
4. Prevention and treatment of myopia:
(1) Keep doing eye exercises twice a day.
Although the number of non-myopes is small, the number of non-myopes doing eye exercises every day is four times that of myopia, and most myopia students have never done or occasionally done eye exercises. This shows that doing eye exercises does have obvious protective effect on vision.
According to the massage theory of traditional Chinese medicine, eye exercises are combined with drug therapy through meridians and acupoints. When doing exercises, massage with your fingertips on the relevant acupoints around your eyes. From the point of view of traditional Chinese medicine, this kind of eye exercises can dredge the meridians of the eyes and reconcile the qi and blood of the eyes, which is called "seeing blood"; From the perspective of modern medicine, massage can accelerate the blood circulation around the eye frame, improve eye nutrition, relax eye muscles and eliminate eye fatigue, thus achieving the purpose of preventing myopia. If you do eye exercises so-so, it is tantamount to scratching your boots and has not played its due role. When doing eye exercises, wash your hands, close your eyes gently, don't leave your nails long, and apply force evenly to your fingers to make the massage feel a little sore, but don't apply force evenly to avoid damaging your eyes. When folliculitis and boils appear on the skin of the face (eyes and nose) and the eyes are inflamed, you should stop doing eye exercises. There are rules for primary and secondary schools to do eye exercises every day, but doing eye exercises in universities depends entirely on consciousness. Because almost all college students now have computers, it is easier to increase the probability and degree of myopia if you don't pay attention to protecting your eyes.
(2) Sit up straight when reading. When reading or writing, keep your eyes one foot away from the book, punch your chest from the desk, and keep your hands one inch away from the pen tip.
(3) Don't read while riding or walking, and don't read while lying down.
(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) Lack of sleep is not only easy to fatigue, but also easy to cause vision loss; Eat less sweets with high sugar content.
Eat less barbecue food, not partial eclipse, anorexia. Eat more foods that are good for eye health, such as foods rich in selenium (animal liver,
Lean meat, corn, onion, garlic, marine fish, mussels, etc. ), foods rich in vitamin A (liver, milk and egg yolk) and foods rich in vitamin b 1 and nicotinic acid (wheat, corn and spirulina).
Verb (abbreviation of verb) summary:
Myopia should be prevented from the future, so everyone should develop good eye habits from an early age. Those who are already nearsighted should get good treatment to control the deepening of myopia. Now there are more and more people with myopia, so it is necessary to strengthen the understanding of myopia in the whole society and popularize the knowledge of healthy eye use in the whole society. At the same time, we should increase the research on myopia, find better treatment methods, and let myopia patients get good eyesight as soon as possible.
Investigation report on the causes of myopia II. First, ask questions.
At present, primary and secondary school students have to wear short-sighted glasses because of unsanitary eyes, which leads to a sharp drop in their eyesight. In order to prevent more pupils from suffering from myopia, we made a survey.
Second, the survey method
(1) Learn about the causes of myopia by surfing the Internet or reading some books about myopia.
(2) By investigating the number of myopia in the fifth grade, we can understand the situation of myopia in the fifth grade.
(3) Ask my nearsighted sister about her eye habits.
Three. Investigation and data collation
information channel
Aspects involved
Specific content
Internet access, books, etc.
What is the cause of myopia?
The main cause of myopia is unsanitary eyes.
survey
Students' myopia
There are 307 students in the fifth grade and 53 students are nearsighted.
Ask my sister
My sister's eyes are used to myopia.
When writing, the distance between eyes and books is too close; Using eyes for a long time causes visual fatigue.
Four. conclusion
1, myopia is caused by unsanitary eyes, such as reading by fire, lack of sleep, reading and writing at close range, etc. High myopia is also related to heredity.
Myopia can be prevented. To prevent myopia, you should have a correct reading posture, the distance between your eyes and books is about 30 cm, do eye exercises seriously, take a rest when reading, watching TV and using the computer 1 hour, and don't read in direct light, in the dark, lying down, driving or walking.
Investigation report on the causes of myopia 3. I have worn glasses since I was a child, because my eyes have amblyopia and astigmatism. Since then, TV and computer have drawn a clear line with me. Even so, I suffered from myopia when I was seven years old. There are many students suffering from myopia around me, so I really want to find out why they are nearsighted. So, I investigated the causes of myopia in primary school students.
survey
1. I checked the information on the Internet to find out how ordinary people get myopia.
2. I called my classmates and friends suffering from myopia and asked them how they were nearsighted.
3. I went to Mianyang Eye Hospital to consult Dean Zhao about the causes of myopia of primary school students.
analyse
In my investigation, I found that myopia developed rapidly at the age of 12 ~ 18. The incidence of myopia was 22.78% for primary school students, 55.22% for middle school students and 70.34% for high school students. The number of people suffering from myopia is increasing every year, and the degree of myopia is greatly increased, and there are not a few thousands of degrees of myopia. Preschool children don't use many eyes, but the proportion of myopia has also increased greatly.
conclusion
1. Preschool children suffer from myopia mainly because of congenital eyeball dysplasia. Amblyopia, strabismus, astigmatism and other eye diseases can easily lead to myopia.
2. Pupils' myopia is mainly caused by watching TV and computer for too long; Reading and writing do not pay attention to distance and posture, light and lighting; Not doing eye exercises seriously and other factors lead to eye fatigue, which leads to myopia or aggravation.
3. In addition to the above reasons, middle school students' myopia is aggravated by heavy learning tasks, great pressure, more homework and less outdoor activities.
4. Genetic factors, environmental pollution and unbalanced nutrition intake are also important causes of myopia.
5. Failure to treat or wear glasses in time after suffering from myopia will aggravate the degree of myopia.
suggestion
In order to effectively prevent eye diseases such as myopia:
1, to develop good living habits, reasonable diet, not partial eclipse, eat more foods containing vitamin C and vitamins A and D.
2. Correct bad habits, develop good eye hygiene habits, read and write correctly, have sufficient light, and insist on doing eye exercises.
3. Try to surf the Internet or watch other radioactive things as little as possible, and keep your eyes from getting tired for a long time.
4, to regularly check to the eye hospital, timely detection of eye diseases, timely treatment, follow the doctor's guidance, and gradually correct vision or prevent myopia from deepening.
Investigation Report on the Causes of Myopia 4 In recent years, I found that there are more and more myopia among primary school students. Every time they arrange seats in the new semester, the class teacher is particularly embarrassed. "There are more and more nearsighted people in the class, so we can't all sit in the front." Some students are tall and short-sighted, and can't see the blackboard clearly, so they take the initiative to adjust their seats. Many students also wear glasses, and some students with poor eyesight can't see the words on the blackboard clearly because they don't wear glasses in time, which affects their study.
"Why are there more and more myopia among primary school students now?" I discussed it with several good classmates.
What's the point of "light speculation? Let's make an investigation! " I said.
What are the causes of myopia in primary school students? How to prevent it? We decided to do an investigation.
1. Objective Through this survey, to understand the myopia rate and causes of primary school students, as well as the corrective and preventive measures of myopia, to enhance the awareness of primary school students to protect their eyes, and to prevent and reduce the occurrence of myopia.
Second, the survey content: (1) Students from two classes of grades 3-6 were selected from our school to understand the students' eyesight.
(two) access to information, investigation and collation, to understand the causes of myopia.
(3) Consult an ophthalmologist to understand the causes and preventive measures of myopia.
Third, survey methods: survey method, chart explanation method, interview method, observation method, induction method and summary method.
Four. Survey time: XX to XX (primary school students go to school, after school, weekends).
Verb (abbreviation of verb) survey process and survey results statistics: divided into two groups, one group records the survey, the other group consults doctors and consults information, and cooperates with each other.
(1) Select students from two classes in grades 3-6 in our school to understand their eyesight. Let's first determine the scope of the investigation. The students in Grade One and Grade Two are young and their eyes are not yet mature, so we conducted an investigation in two classes from Grade Three to Grade Six. We used two classes in the afternoon to go to the health teacher to check the eyesight of 507 students in grades three to six and make records.
(Above 5.0 belongs to normal vision, below 5.0 belongs to poor vision). The findings are as follows:
A questionnaire survey on eyesight of students in grades 3-6.
The total number of students in the class is to check the number of people with normal vision and the number of people with poor vision.
Number% number%
Three, one 55553258,22341,8
Three, two 56563358, 9234 1, 1
Four. I am 67675277,61522,4
Four, two 62623658, 1264 1, 9
Verb (abbreviation of verb) I 64643554, 62945, 4
Five, two 68684058,82841,2
The intransitive verb I 69693956, 53043, 5
Six, two 66663857, 62842, 4
Total 50750730560,220239,8
(2) Investigate myopia students and understand the causes of myopia. According to the information collected after the interview and found on the Internet, we found the main reasons for "campus myopia":
1, environmental factors (1), lighting and reading posture
Poor local light seriously affects vision. The greater the brightness contrast between the environment and the working face, the easier it is to cause visual fatigue. Incandescent lamps have greater influence on vision than fluorescent lamps.
Bad reading posture can lead to poor eyesight. The myopia prevalence rate of students with long reading time is higher than that of students with short reading time. The closer the reading distance, the faster the myopia progress.
(2) Nutrition and diet
Children's physique, nutrition and health can affect the formation and development of myopia to some extent. When the body is weak or after a serious illness, the body's resistance drops. At this time, if you use your eyes for a long time, you will be prone to myopia. In addition, some scholars have suggested that children's myopia is related to the intake of sugar, protein and calcium and the lack of some trace elements (such as chromium, zinc, copper and sodium).
(3) regional differences and socio-economic factors
The prevalence of myopia among urban students is significantly higher than that of rural students, and this phenomenon is more obvious with the increase of age. Rural life is closer to nature, the air is fresh, and rural students have fewer opportunities to watch TV and use computers.
2. The investigation of genetic factors shows that the occurrence of students' myopia is closely related to whether their parents or siblings have myopia, and high myopia is basically caused by heredity. Children with myopia in their parents or families should be the key targets to protect their eyesight and prevent myopia.
(3) According to the above interview results, we started a new round of sampling survey. The causes of poor eyesight in 202 of 507 students in grades 3-6 were investigated.
The findings are as follows:
Questionnaire on the causes of students' poor eyesight
project
Classification due to genetic factors
Caused by environmental factors
Reading and writing posture is not correct, watching TV and playing electricity.
Use your brain for too long
Class size% quantity% quantity%
3, 1 313730,41356,6
Three, two 417,4834,81147,8
Four. I am 320746, 7533, 3
Four, two 519,21453,8727
V a 517,31551,793 1.
V. Two 4 14, 2 1242, 8 1243.
VI. a 3 10 1756, 71033,3
6, 2 3 10, 7207 1, 45 17, 9
Total 3014,910049,57235,6
(4) Consult an ophthalmologist to find out the causes and preventive measures of myopia. Investigation report on the causes of myopia. Put forward questions
The eyes are the most important part of the human body and the most important organ to see the world. But now that the living standard is high, there are more and more nearsighted people in our class, and I am one of them. In order that no one in our class will be nearsighted, I decided to make an investigation.
Second, the survey method
1, ask about eye protection, what is myopia.
2. Investigate the number of nearsightedness and interview the causes of myopia.
Three. Investigation and data collation
The specific content of information channels.
What is myopia on the Internet? Myopia is one of my vision defects. I can see things clearly in the distance, but I can't see everything near.
Investigation on the number of nearsighted people There are 5 1 person in our class, and the number of nearsighted people is 1 1 person, accounting for about a quarter of our class.
1, interview them why they are nearsighted 1. Watching TV too much. There are three people.
2. Read while lying down. There are three people.
3. The writing posture is incorrect. There are three people.
4. I don't like doing eye exercises. The number of people is 1.
5. Play computer games. Number 2
Four. conclusion
1, if you don't pay attention to your eyes and use them for a long time, it is easy to cause myopia. Such as: watching TV too much, reading while lying down, writing incorrectly, not liking doing eye exercises, playing computer games, and so on.
2. Myopia can be avoided, but "two musts" and "two don 'ts" are: 1. The posture of reading and writing should be correct, and the distance between eyes and books should be kept at one foot. Take a rest after watching it for an hour or so, or look far away for a while. "Two don't" is 1. Don't read or write in dim light and direct sunlight. 2. Don't lie in bed, walk or read in the bumpy carriage.
Investigation report on the causes of myopia. According to the survey, there are more than 5 million blind people in China, and the low myopia is nearly10 million people, especially children and adolescents, with a very high prevalence rate. According to the latest data of the national student physical health survey, the incidence of myopia in primary school students, middle school students and high school students in China is 22.8%, 55.2% and 70.30% respectively.
analyse
From the investigation, I found that the prevalence rate of children and adolescents is high. And there are about 5 million blind people, everyone's eyes are the same, but some people's myopia is beyond the ideal range. Why is their myopia rate so high? When doing homework, many people don't pose correctly, so they stay at home watching TV and playing computer for a long time on weekends.
conclusion
After investigation and analysis, I found that the causes of myopia are:
1. Sitting in front of TV and computer for a long time.
2. The posture of the homework is incorrect.
3. The diet is unreasonable.
4. Reading in the rickety carriage.
5. Read in a place where the light is too weak.
6. Genetic factors.
Wait, these reasons.
Investigation report on the causes of myopia. First, ask questions.
The eyes are the most important part of the human body and the most important organ to see the world. But now that the living standard is high, there are more and more nearsighted people in our class, and I am one of them. In order that no one in our class will be nearsighted, I decided to make an investigation.
Second, the research process and methods
1, ask about eye protection, what is myopia.
2. Investigate the number of nearsighted people and visit the causes of myopia.
The following is my research:
The specific content of information channels.
Online books
What is myopia? Myopia is one of the visual defects. It can see things far away, but it can't see everything near.
Investigation on the number of nearsighted people There are 5 1 person in our class, and the number of nearsighted people is 1 1 person, accounting for about a quarter of our class.
Interview them why they are nearsighted.
Watching TV too much. There are three people.
2. Read while lying down. There are three people.
3. The writing posture is incorrect. There are three people.
4. I don't like doing eye exercises. The number of people is 1.
5. Play computer games. Number 2
Third, research results.
1, if you don't pay attention to your eyes and use them for a long time, it is easy to cause myopia. Such as: watching TV too much, reading while lying down, writing incorrectly, not liking doing eye exercises, playing computer games, and so on.
2, myopia can be avoided, but to achieve "two musts" and "two don't" is:
1, read and write correctly, and keep the distance between eyes and books one foot.
Take a rest after watching it for an hour or so, or look far away for a while.
"two don't" is
1. Don't read or write in dim light and direct sunlight.
2. Don't lie in bed, walk or read in the bumpy carriage.