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Three "20"s are important

Date:2023.05.26   Views:567

First, do three "20". Use your eyes for 20 minutes to look at an object 20 feet (about 6 meters) away, and then rest for 20 seconds.

Second, the indoor lighting should be uniform. If you study indoors, the light intensity should be above 300-500 lux, and you should pay attention to the uniform intensity of the environment. That means the lamp and the room as a whole should be bright.

Third, outdoor activities are also very important. School-age children are guaranteed at least 1 hour a day, and it is best to reach more than 2 hours a day during holidays, with an average total time of 10-14 hours a week, which can help prevent and control children's myopia.

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