There is no correlation between visual acuity and myopia, and it is impossible to estimate the exact degree of myopia based on the patient’s naked eye vision.
Myopia is a common ophthalmologic disease, which is a type of refractive error that can cause vision loss, but due to individual differences, there is no correspondence between the degree of vision loss and the degree of myopia.
However, due to individual differences, there is no correlation between the degree of vision loss and the degree of myopia. Moreover, myopia is not the only cause of vision loss, but also many ophthalmologic diseases, such as astigmatism, amblyopia, cataracts, and fundus lesions. When vision loss occurs, it cannot be simply assumed that it is caused by myopia.
The patient’s current visual acuity of 0.7 should be examined by the ophthalmology department of the hospital in a timely manner to determine the specific cause and corrected according to the doctor’s advice.