Three "20"s are important
Date:2023.05.26 Views:314
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.
