The extra forty minutes a day in the fresh air, reduce the risk of myopia in children, say the authors of a study conducted in twelve schools in China. In some areas of the country one hundred ninety graduates suffer from myopia. To reduce the percentage of children with this disease, school students forced to spend an extra lesson in the street.
The researchers divided the twelve primary schools in China in two groups: six schools, nothing has changed in the schedule, the other six schools began at the end of the school day to kick the children out for forty minutes. Parents of students in the second group often advised to walk with the children on weekends. The aim
study was to determine the number of children with myopia.
Two thousand first-graders around the age of seven years, participated in the experiment. After three years, myopia was at forty percent of children in the control group. Among those who have walked the extra forty minutes a day, the figure was thirty percent. That is the risk of myopia dropped by about twenty-five percent.
The study's authors suggest that the increased amount of sunlight can have a positive influence on the development of the eye. The street children are more likely to look at objects that are at a greater distance than in the room. It may play a role in complementing the effects of sunlight. To improve the result, the school offers to increase the amount of time children spend on the street, and continue to tell parents about the benefits of walking.
Myopia - the result of the growth of the eye due to a mutation of collagen, the sclera is too soft and stretches in the growth process. The image is not formed on the retina, but in front of her. Conducted experiment could reduce the percentage of students with myopia because the described measures removed spasm of accommodation. Spasm of accommodation - this is a false myopia, spasm of the ciliary muscle, it arises in the long-term focus the eye on close objects. Students spend the entire day in the classrooms, concentrated reading books and solving examples in notebooks, which affects the development of spasm of accommodation. The conclusion is logical: normal occupational health and availability breaks reduce fatigue.
I asked the opinion Meklon
, a specialist in the field of ophthalmology, the results of this experiment. He said that slow down or affect the growth of the labor regime of true myopia is almost impossible. The elasticity of the collagen and the growth rate of the eye does not depend on whether you're reading in the dark or sit at the computer for days. However, this leads to a spasm of accommodation, which has the same symptoms, which causes confusion. The spasm is not associated with the linear dimensions of the eyes, and is the result of muscle fatigue lens. True myopia, on the contrary, is the result of a congenital mutation of collagen and elasticity over the sclera. The maximum that can be done to reduce its development, an operation scleroplasty. Also, there are studies that say that you can partially compensate for problems with connective tissue introduction of drugs of magnesium and B6 vitamin during the growth of the child. Typically, the true myopia ceases to progress simultaneously with the end of the human growth.
Shoe size is not changed for 5 years and you become less visible? The reason, most likely, in a spasm. Even after laser vision correction may deteriorate because of the spasm. If a healthy person could earn it overloads the worse person after correction? Particularly acute problem manifested spasm after 30 years, when the range of accommodation of the lens is reduced. As a child, you can sit for days at the monitor without any consequences, but in the 30 years of normal office day at the computer causes that you hardly discern objects in the distance.