The eye reserve value cannot be restored, and people with low eye reserve are advised to take myopia prevention and control. The eye reserve value usually refers to the hyperopia reserve, and most of the population will have about 100 to 300 degrees of hyperopia at birth. The reason for this physiological change is that the newborn’s eye axis is short due to incomplete development. As the eye continues to develop, the degree of hyperopia will decrease and normal vision will be restored gradually, and this process will continue until the age of about 10 to 12. Because the process of eye development is irreversible, it means that the reserve value of the eye cannot be restored after it is depleted. The modern way of life has a variety of factors that are harmful to eye sight, such as playing computers, playing cell phones, watching TV, etc. When children use their eyes too early, too much or too often at close range, the degree of farsightedness will decrease rapidly, and the probability of the onset of nearsightedness will also increase greatly. Parents are advised to do a good job of protecting their children’s vision, reduce the rate of depletion of the eye reserve value, and seek medical attention in case of discomfort.