During the holiday period, you must ensure that your child has enough sleep, do more outdoor sports, and let the eyes have a distant vision. Because the eyes can only relax when the eyes are far away, the eyes can rest and adjust. Relieve visual fatigue caused by long-term close-up eyes. Once a teenager is found to have vision problems, it is necessary to take advantage of the good opportunity to use the holiday with a small amount of eye for effective correction. When the holiday is over, the child should also be examined for eyesight and it is important to find that the problem should be corrected early.