5.0 to 5.9 indicates visual acuity, the value of which is a normal visual acuity value but does not determine myopia.
In general, the basic examination of the eyes will involve two commonly used values, visual acuity and refractive status, both of which can express the health of the eyes, but are different.
Visual acuity reflects the visual function of the macula at the bottom of the eye, which is simply a subjective result of being able to read the smallest row of the eye chart.
Refractive error is the phenomenon of light being deflected through different refractive media, which is commonly referred to as the value measured by an optometrist (an instrument that measures the eye), and is an objective result.
Visual acuity and refractive error do not correspond to each other, therefore, only the visual acuity value can not determine whether there is myopia or not, but also need to know after the optometry.