The hyperopic reserve in children is mainly clarified by optometry. Children’s eyes are in the developmental stage, the eye axis is relatively short, most of them are farsighted, and the physiological hyperopia is called hyperopic reserve. Early offsetting of the hyperopic reserve makes them susceptible to myopia. Under normal circumstances, the hyperopic reserve usually fades with age. Children can be evaluated for hyperopia through optometry to clarify the hyperopia reserve. Children should use their eyes correctly, develop good eye habits, do not read books or look at cell phones under bright light, in dark light, when walking, in the car during sports, and in bed before going to sleep, and have regular checkups to keep an eye on their visual acuity. Patients with vision loss are advised to seek medical attention in a timely manner to assess their condition and follow the doctor’s instructions for treatment.