The traditional view is that the key points of a correct pencil grip are eyes 1 city foot from the book, chest 1 fist width from the edge of the table, and 2 to 3 cm from the pen tip at the grip, but the promotion of this standard posture has not really stopped the growing incidence of myopia. They investigated the pencil grip of 300 orthoptic and 300 myopic students and found that orthoptic children were more likely to adopt a posture in which the thumb and index finger did not touch each other, while myopic students preferred to pinch or cross their thumb and index finger, and the deeper the degree, the higher the rate of adopting the wrong posture. Myopia and other refractive disorders of youth are rapidly increasing each year, according to the Chinese Society of Ophthalmology Shanghai Branch recently released a data shows that Shanghai’s youth myopia patients accounted for 1/3, 60% of secondary school students, key high school seniors up to 80%, the incidence is still rising. The reporter found that many myopic teenagers have such doubts. Professor Chu Renyuan, director of the Ministry of Health Myopia Key Laboratory, said the laboratory recently conducted a survey of myopic adolescents, the results found that the biggest cause of myopia does not lie in the traditional belief that the eyes are too close to the book, but the wrong pencil grip posture. Not only is the onset of myopia associated with the use of different pencil grips, but the deepening of refractive error is also associated with the wrong pencil grip. The reason is that when a child maintains a standard sitting posture, if the thumb and index finger of the pen grip are pinched or crossed, the fingers will block the line of sight, making it difficult for him to see the tip of the pen and forcing him to lower his head or tilt his head to the left, thus bringing the eyes closer to the book, increasing the onset of myopia and accelerating its development. On the contrary, if the thumb and index finger do not touch each other’s posture, not only is the writing force more scientific, but also does not block the normal vision of the gaze, thus ensuring that the child uses the eyes of science. According to statistics, about 95 percent of myopic students have the phenomenon of pinching or crossed pencil grip, but the educational community is generally concerned about the impact of sitting on children’s vision, the correct pencil grip has long been neglected. From the beginning of kindergarten education, teachers must constantly correct students’ wrong pencil grip to control the growth of myopic teenagers in the city from the source. Rubber band fixed pen grip posture “first of all, the pen close to the index finger, the pen tip and index finger tip in the same horizontal line, at this time, note down the index finger root corresponds to the position on the pen bar; then the rubber band in this position set on a circle (the number of circles can be based on the size of the writer’s hand to decide for themselves), and then the four fingers in addition to the thumb in the direction of the pen tip together into the remaining large circle; hold an empty fist, the Do the correct pencil grip and the rubber band will help fix the child’s posture.” Mr. Jiang met excitedly to the reporter demonstration, and reminded: “rubber band can not be too small, the edge is best rounded edge, otherwise a long time easy to hoop pain child’s tender skin.” At present, the “pencil grip posture rubber band fixation method” has been promoted in the first grade four classes. According to the classroom statistics of the head of the grade teacher Huang, with last year’s entry of new students “at least 1/3 of them have an incorrect pencil grip”, compared to this year’s pencil grip instability of children reduced to about 5 to 10 people, that is, 1/40 to 1/20 between.