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A model letter to parents about preventing myopia
A letter to parents about preventing myopia 1 According to a survey, the incidence of myopia in China is increasing, and tens of thousands of people have been blinded by myopia. Among children and adolescents who are studying, the myopia rate increases gradually with age. At present, the myopia rate of primary school students is 28%, junior high school students are 60% and senior high school students are 85%. The younger the myopia age, the higher the myopia degree. At present, the myopia of students is increasing by 50- 100 degrees every year.
According to the statistics of the student expert group of China International Medical and Health Research Institute, if primary and middle school students study for more than 6 hours every day, 80% of them will be nearsighted within one year, and the degree will increase by 50 ~ 150 degrees every year. However, many parents of children who wear glasses always mistakenly believe that with the increase of age and the long-term reduction of eye use time, children's vision will tend to be stable and the diopter of eyes will not increase. When they grow up, they can have laser surgery. But in fact, the study found that children's myopia is still increasing at the rate of 50 ~ 100 degrees per year, and it can't be suppressed until the age of 20. However, if a junior high school student with myopia at the age of 10 is 200 degrees, it will deepen by 50 ~ 150 degrees every year according to the law of myopia, then it may have reached 1000 degrees by the age of 108, and laser surgery means that the higher the myopia, the more corneal incision and corneal tissue will be. It is necessary to know that if the diopter reaches 600 degrees, it is already considered severe myopia, which is very easy to cause blindness; Therefore, the development of myopia must be controlled at a low level to avoid the occurrence of high myopia, which has a great impact on children's life.
During the summer vacation, children's myopia is high and needs to be prevented and corrected in time. Aviva 3D Orthokeratology Center in the United States launched the "Summer Funding Program for Myopia Students", which reduced the correction fee for myopia students by 1000 yuan. We can go to the center for a comprehensive vision examination at any time for free. This summer, we should make children's eyes healthy and bright.
Xx school
Date, year and month
A letter to parents about preventing myopia 2 Dear parents:
Hello!
Children are the future of the motherland, and a pair of bright eyes are their windows to the world. Protecting every child's eyesight is the unshirkable responsibility of schools, families and society. In recent years, the Education and Sports Bureau has taken a series of scientific prevention and control measures, successively established and improved the eye hygiene system for students, strengthened the publicity of eye protection for similar eyes, and continuously improved the teaching hygiene conditions, so that the myopia prevalence rate of primary and secondary school students in the whole region has been effectively controlled. In order to effectively strengthen the protection of students' eyesight, * * * builds a line of defense for students to prevent myopia and protect their eyesight. Please ask parents to understand the causes and harm of myopia and cooperate with the school to supervise and guide their children's vision protection.
First, the harm of myopia
1, poor eyesight, often dry and tired eyes, affecting the quality of study, life and work. Wearing glasses for a long time will cause inconvenience in life and work.
2, moderate and high myopia, will lead to exophthalmos, eyelid relaxation, affecting the appearance.
There are restrictions on further education, joining the army and finding a job.
You must wear two pairs of glasses, because you will have presbyopia when you are old.
5. The incidence of cataract and glaucoma in myopic patients is significantly higher than that in normal people.
6. The main hazard is moderate and high myopia, especially high myopia, which can easily lead to vitreous opacity, retinal hemorrhage and detachment, leading to blindness. According to statistics, blindness caused by myopia has ranked third after cataract and glaucoma.
Second, the causes of myopia
1. The development of most moderate and low myopia is related to hyperopia during eyeball development. Because of watching TV, playing computer and playing electronic games for a long time, outdoor activities are obviously reduced, and they are in a state of myopia for a long time; Some people even neglect eye hygiene, and do not pay attention to distance and posture, light and time when reading, resulting in long-term continuous contraction of the ciliary muscle of the eye, which first forms accommodation spasm and then further develops into myopia.
2. Genetic factors. According to statistics, if the number of nearsighted patients whose parents are not nearsighted is taken as a benchmark, the number of nearsighted patients whose parents are nearsighted is 2.6 times that of their parents, and the number of nearsighted patients whose parents are nearsighted is 3.8 times that of their parents. In the eyes of moderate and high myopia, the genetic tendency is more obvious.
Third, the content of parental supervision.
(1) Pay attention to the posture of children reading and writing.
1. Sit up straight when reading and writing, and keep the distance between eyes and books at 33&; Mdash35 is about 35 cm (one foot), the distance from the chest to the table should be about one punch, and the distance from the finger holding the pen to the nib should be about 3 cm (one inch).
2. When writing, the angle of the pen should be appropriate. When writing with a pencil or pen, the angle between the pen and the paper is 40&; Mdash50 degrees
Suddenly, when writing with a brush, try to keep the pen upright.
3. Don't read with your head tilted or lying down, don't walk, and don't read in a rickety car or boat.
(2) Improve children's learning environment.
1. When reading and writing, there should be enough light, window light and desk lamp lighting. Shoot from the left front. Don't read in too bright or too dark light (such as direct sunlight and insufficient light at night); Try not to write homework with a pen with too thin lead, the hardness of the lead should be moderate, the homework paper should be clean, and the writing font should not be too small; Choose a suitable desk and chair to read and write, and the height of the desk should be near the upper abdomen.
2. When watching TV, people should keep a distance of more than three meters (or keep a distance of more than five times the diagonal of the TV screen); The height of TV screen should be parallel to or slightly lower than the line of sight of TV viewers; The TV should be placed in a backlit place; The brightness of the TV should be appropriate, neither too bright nor too dark.
3. When operating the computer, it is best to turn the computer screen away from the window or side to avoid reflection; The computer console should be lower than the height of the general desk, and the seats should be adjustable. The center of the computer screen should be on the same level as the chest; The distance between the computer screen and eyes should be not less than 50 cm, and the line of sight should be lower than the horizontal line of sight10&; Mdash20 degrees; The light in the computer operation room should not be too weak or too strong (a 40-watt fluorescent lamp can achieve the required illumination for a room of 12 square meters).
(3) urge children to develop good eye hygiene habits.
1. The continuous use time with eyes closed should not be too long, and should be controlled at about 30 minutes.
2. Watching TV or operating the computer for too long. Watch TV or operate the computer for about 30 minutes, let your eyes rest, or close your eyes or do eye exercises, or exercise outdoors or overlook.
3. Don't play or play less video games. Pay attention to the distance between your eyes and the game machine when you play occasionally, and the duration should not exceed half an hour.
(D) a balanced diet and reasonable nutrition
Help children develop a diet habit of not being picky about food and partial eclipse, pay attention to the supplement of trace elements in diet, such as zinc and chromium, eat more vegetables and fruits, and often eat foods rich in vitamin A (such as carrots, spinach, animal liver, apricots, loquat, etc.). ).
(5) ensure that children get enough sleep. Pupils sleep 10 hours a day, junior high school students sleep 9 hours a day, and senior high school students sleep 8 hours.
(six) regular inspection, timely wear appropriate glasses for children.
Parents should take their children to an optometrist or ophthalmologist for a comprehensive vision examination every six months; If you confirm that your child is nearsighted, you should go to the hospital for optometry and glasses in time; /kloc-Children under 0/6 should be cautious when wearing contact lenses. In a word, schools, families and society should work together to reverse the negative trend of the rising detection rate of poor eyesight among teenagers. Strengthen the guiding ideology of "health first, prevention first" and strive to enhance the physical health of teenagers.
Thank you for your active cooperation! May the children have healthy and bright eyes!
September 0xx 1 1 day.
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