Can outdoor sports prevent myopia?

According to relevant reports, there has been an unprecedented increase in the number of nearsighted people in China. 60 years ago, 10% to 20% of Chinese people had myopia. Today, up to 90% of young people and young people are myopic. Outdoor activities and nearsightedness are a focus of myopia research in these years.

Outdoor activities and nearsightedness are a hot topic in myopia research in these years. Can outdoor activities prevent myopia? The answer is yes.

Dr. Huang's PK table ranked eighth in outdoor activities and the results seemed less attractive. However, he reminded everyone not to look at the rankings simply because there are relatively few studies, so there are fewer samples to enter the analysis, and some “lose”.

Ian Morgan of the Australian National University and Professor He Mingguang of Sun Yat-Sen University found that -

First-year children increase their daily activities by 40 minutes every day, and the incidence of myopia drops by 10% after 3 years. The study of Wu Peichang, a Chang Gung Memorial Hospital in Taiwan, increases outdoor activities by 80 minutes a day, and the incidence of myopia drops by 9% after one year. Both studies have shown that outdoor activities can effectively prevent myopia.

Has the nearsighted child outdoors to help them?

Professor Wang Ningli of Beijing Tongren Hospital, Capital Medical University, found that for children who are not yet nearsighted, adequate outdoor activities can effectively prevent myopia. For children who are already nearsighted, the protection of outdoor activities is not obvious.

“This is a valve. Once it is opened, myopia is like a flood of beasts.” To prevent myopia, we must start small. We must ensure that children have sufficient outdoor activities in kindergarten.

How long can outdoor activities play a role in preventing myopia?

Although more detailed studies are still underway, experts have reached a consensus: If outdoor exposures are to be effective, they should be exposed for at least 2 hours a day.

In addition, some studies also believe that intermittent exposures may work better when compared to a 2-hour stay in the open air.

Taiwan’s research adopted this method: 20 minutes, 4 classes a day, and 80 minutes a day. Some animal experiments have also confirmed that short-term exposure and the protective effects of repeated stimulation may be better than continuous exposure.

For preschool children with normal vision, it is particularly important to add more than 40 minutes of outdoor activities to preschool children. It is better to split the 40 minutes apart for prevention. For the children's future, let us participate in outdoor activities more!