What is “vision reserve value”, why does it say that it will be myopia after it is used up?

Abstract: at birth, because the eye development is not perfect, the eyeball is small and the eye axis is short, there will be about 300 degrees of hyperopia at the beginning, and this degree of hyperopia is the so-called “physiological hyperopia reserve value”.

newborns are hyperopia, which is their own talent at birth – vision reserve value, also known as “hyperopia reserve value”. It is similar to “myopia antibody”. If the threshold is too low or used too fast, it will affect the development of children’s vision. Therefore, in the prevention of myopia in adolescents, regular monitoring of hyperopia reserve value is also one of the effective means. What is the relationship between hyperopia reserve and myopia?

before introducing the relationship between the two, we must clarify the three stages of children’s visual development: physiological hyperopia, emmetropia and myopia. When babies with


are just born, they will have hyperopia of about 300 degrees at the beginning because of their imperfect eye development, small eyeball and short eye axis, and this hyperopia degree is the so-called “physiological hyperopia reserve value”. After


, their eyes tend to mature after physical development, Eyesight will reach the normal standard (i.e. emmetropia). This process usually lasts until about 12 years old. If it weakens or disappears too quickly, it will lead to myopia.

to prevent myopia, first find out the child’s hyperopia reserve value!

At present, the main method to detect children’s hyperopia reserve value is binocular vision screening instrument, which is similar to normal optometry. It can be used by children over 6 months old. The earlier we know the children’s hyperopia reserve value, the more conducive it is to the prevention of juvenile myopia.