A visual acuity of 1.0 in an adult does not determine the presence of myopia.
Normally an adult should have a visual acuity of 1.0, but when a patient has mild myopia, it is possible that the visual acuity may not be affected enough to maintain a visual acuity of 1.0. Therefore, there is no way to use a visual acuity test instead of an optometry test to determine the presence of myopia.
Myopia is a type of refractive error, and an optometry test is required to determine if you have myopia and to know the exact amount of myopia. When myopia is low enough that it does not interfere with naked eye vision, glasses are usually not needed to correct it.
Patients who want to know if they have myopia should go to the ophthalmology department of the hospital in time, and the doctor will determine and guide the patient’s treatment through the examination.