A visual acuity of 4.4 indicates a loss of vision, but the degree of myopia cannot be inferred from the visual acuity; there is no correspondence between the two.
Under normal circumstances, naked eye vision should be able to reach 5.0, and the current naked eye vision of 4.4 indicates significant vision loss. Since many ophthalmologic diseases can cause vision loss, it is not possible to deduce that myopia is the cause of vision loss, and because of individual differences, it is not possible to infer the degree of myopia from the visual acuity.
It is recommended that patients go to the ophthalmology department of the hospital for examination in a timely manner so that the doctor can find out the causes of vision loss, which commonly include myopia, astigmatism, cataract, fundus lesions, etc. If it is due to myopia, the specific degree of myopia can be determined through further optometry, and the doctor will guide the treatment.