Clinically, it is not possible to determine how many degrees of myopia are equivalent to a visual acuity of 4.7, and it is necessary to go to the hospital for a formal optometry examination to determine the degree of myopia. Usually there is no direct correspondence between the amount of visual acuity and the degree of myopia. Normal visual acuity is usually above 5.0, and visual acuity of 4.7 refers to the visual acuity of the eyes obtained through the checking of the visual acuity meter, which can only indicate that the visual acuity is lower than the normal value. Visual acuity of 4.7 is also not necessarily caused by myopia, but may also be caused by refractive errors such as hyperopia, astigmatism, or other causes of vision loss. Due to the different visual sensitivity of each person, there will be a corresponding difference in degree. If it is simple myopia, you need to go to the hospital for a formal optometry examination to determine the degree. In addition, a visual acuity of 4.7 may also be pseudomyopia caused by simple visual fatigue. For young children with a visual acuity of 4.7, it may be normal because their visual development is not yet perfect. In addition, some ophthalmic diseases may also cause vision loss, and it is important to go to a regular hospital in time when vision loss occurs. To clarify the specific refractive error of the patient, it is necessary to go to the hospital for an optometry examination to make it clear. Usually should be reasonable use of eyes, pay attention to the combination of work and rest.