Some studies have pointed out that exercising for 2 hours every day helps to prevent myopia. Modern primary school students rush to Anqin class after class, stay indoors for a long time, and often read books, play computers and video games at close range, so they wear glasses since childhood and bear the ugly name of "four-eyed frog". Ophthalmologists remind that once primary school students are nearsighted, it is easy to increase at the rate of 100 degrees per year. If it is not well controlled, it will soon soar to a high myopia of more than 600 degrees, causing diseases such as retinal detachment.
However, according to research, continuous exercise for 2 hours every day is conducive to improving vision. There used to be a high school student in Kaohsiung. In the fifth grade of primary school, his myopia was about 100. However, playing basketball 1 to 2 hours a day, after 5 years, the degree is only 175 degrees, and the increase before and after is less than 100 degrees, which is quite rare. Doctors speculate that exercise may promote the balance between sympathetic and parasympathetic nerves and prevent the aggravation of myopia.
Another research paper published in the journal Sports Research, "Open and close the dynamic vision of athletes?" "According to the degree of utilization of foreign * * * *, sports events are divided into different sports technical characteristics such as opening skills and closing skills, and compared with non-athletes in dynamic visual acuity, it is found that good people in dynamic visual acuity have better eyesight. In other words, athletes' eyes have better instantaneous vision when capturing images, decomposing and perceiving moving target images, and the overall vision is better than that of non-athletes.
The so-called "open sports technology" refers to the skills whose movements can change with the changes of individual external situations, such as volleyball, taekwondo, table tennis and other sports that are difficult to effectively predict the future trend; On the contrary, "closed sports technology" refers to sports skills that can be carried out without reference to individual external conditions, and its environment is stable and predictable, such as archery and swimming.
The research points out that although the dynamic visual acuity of athletes with "open sports technique" and "closed sports technique" are similar, they are still obviously superior to the average person. However, after a long period of training, athletes will be able to track moving objects repeatedly and invisibly with their eyes, thus developing better dynamic visual acuity and overall vision.