Hyperopic reserve is a rapid depletion of the hyperopic reserve and can be seen as a warning of myopia. When a person is born, the eye axis is relatively short, about 16 millimeters, and at this time the eyes are farsighted, which is the child’s hyperopic reserve. This is the child’s farsightedness reserve, which cannot be acquired later in life. As the child grows older, the eye axis gradually becomes longer, and the degree of farsightedness gradually decreases. Bad habits such as spending too much time with the eyes, looking too close to things, and staying up too late will all lead to faster growth of the eye axis and faster depletion of the farsightedness reserve. With insufficient farsightedness reserve, the child may develop myopia. To protect your child’s farsightedness reserve, it is important to use your eyes reasonably, maintain proper reading and writing postures, reduce the time and frequency of using electronic products, have balanced nutrition, and have regular refraction checkups to prevent myopia.