First of all, the questions raised
We are only in primary school now. However, I found that many students in our class wear glasses, and some students' eyesight is even lower than 4.5, which may bring a lot of inconvenience to their future life, study and work. So I want to take this opportunity to study what factors are mainly involved in the decline of primary school students' eyesight.
Second, the survey method
1, consult books, newspapers and websites, etc. Understand the main reasons for poor eyesight of primary school students.
2. Issue a "questionnaire" to find out the reasons and number of students' eyesight decline.
3, through a variety of ways, collect the consequences of decreased vision.
Three. Investigation and data collation
information channel
Aspects involved
Specific content
Books and newspapers
The root of myopia
Myopia is a kind of ametropia.
network
The first doctor to treat myopia
1985 American doctor
network
How many people in the world are nearsighted?
33% of the world population.
magazine
Myopia is the highest in the world.
Up to 3000 degrees
Four. conclusion
1, according to research, the causes of myopia or decreased vision are:
(1) Poor posture when doing homework.
(2) surf the Internet and watch more TV every day.
(3) When doing eye exercises, you are not serious enough. You should open your eyes from time to time.
More than 80% people often read books in bed.
Therefore, developing good eye habits is the key to protect your eyesight, and don't damage the window of your heart.
2. The following are suggestions for students who have not developed good eye habits:
(1) Try not to turn on the light to read or do homework after 5: 30 in the evening.
(2) When doing homework, we should strictly "punch one foot and one inch".
(3) Try not to turn off the lights when watching TV or using the computer at night, because this is a key point that leads to poor eyesight.
(4) Don't sit in front of TV or computer for a long time, let alone play games for a long time.
5] Go home every day to call your password and do eye exercises.
[6] Don't wear other students' glasses easily, which is not good for yourself, but will slowly reduce your eyesight.
At present, the myopia rate of primary and middle school students in China has reached 34.6%, the myopia rate of high school students has reached 70%, the number of patients has exceeded 60 million, and the number of people who are blind due to myopia has reached 300,000. The decline of vision directly affects our academic performance, further studies and employment, and also hinders our physiology and psychology to varying degrees. According to a joint survey by the Ministry of Health and the Ministry of Education, the incidence of myopia among students in China is close to 60%, ranking first in the world.