Farsightedness reserve reduced to 0 needs to be remedied by developing good eye habits, avoiding excessive use of electronic products such as computers and cell phones, and doing more outdoor exercises. Children have a reserve of hyperopia. If the reserve of hyperopia is lowered to 0 because of not paying attention to the proper use of eyes, it is a sign that myopia may occur in the future. At this time, the main remedial measures are to develop good eye habits, such as not to overuse electronic products, such as cell phones, computers, etc.; at the same time, they should also do more outdoor sports; so that the eyes can be sufficiently relaxed, adapted to look at distant scenes, you will be able to alleviate visual fatigue. These measures are conducive to avoiding further lengthening of the eye axis, thus reducing the risk of myopia.