How to calculate children's vision reserve value

The far point of hyperopia is behind the eyes, which is the virtual focus. So the typical hyperopia is not clear, and myopia is even less clear. When the degree of hyperopia is low, patients can use their accommodation ability to increase the refractive power of their eyes and concentrate the light on the retina, thus obtaining clear vision. However, due to frequent overuse of accommodation, hyperopia has obvious fatigue symptoms.

Pay attention to the reserve value of juvenile hyperopia: juvenile myopia needs to be prevented before it happens. Eye experts say that children aged 6 to 7 should have a reserve value of 200 degrees farsightedness. Using modern optometry technology, it can accurately predict. If the hyperopia reserve value at this time is far from 200 degrees, for example, only 50 degrees, it means that the child will be nearsighted in primary school. Therefore, we should advocate a comprehensive optometry examination for preschool children and evaluate and predict the possible myopia. If it is found that the reserve value of hyperopia is not enough, corresponding preventive measures should be taken to prevent it.

In recent years, the age of myopia among Chinese teenagers has been advancing, and these children will continue to increase their degrees every year, often reaching more than 600 degrees in high school. High myopia is easy to cause vision damage, such as retinal detachment, macular degeneration, glass ball opacity, glaucoma and so on. These ocular fundus diseases are all blinding diseases, which can not be solved simply by wearing a pair of glasses or doing laser surgery, just like the lens problem of a camera is solved, but the film problem is not solved.

The human eye has two golden periods of rapid development, one is 3 to 5 years old, and the other is 12 to 15 years old. In these two golden periods of rapid development, the prevention of myopia is often ignored. Preschool children are busy learning painting, calligraphy, literacy, playing the piano, foreign languages and so on. But they don't know that this will consume a lot of hyperopia reserves, thus laying a hidden danger for myopia.