4.1 How many degrees of myopia?

According to visual acuity 4.1, it is impossible to know the degree of myopia.

Visual acuity refers to the ability of the eye to distinguish images within a certain distance. It is affected by myopia, hyperopia, amblyopia, environment and other factors. It is generally expressed by visual acuity. Myopia refers to diopter, which is mainly used to describe the refractive state of the human eye. There is no equivalent relationship between visual acuity and diopter, so it is impossible to know the degree of myopia according to visual acuity 4.1.

If the patient has vision deterioration, he should be admitted to hospital as soon as possible to determine the specific cause and then take targeted treatment measures such as optical correction and surgical treatment.