According to the International Standard Visual Acuity Chart, a visual acuity of 5.0 is usually normal vision and is not considered myopia. Visual acuity 5.0 cannot be directly converted or judged how many degrees it is, there is no direct relationship between visual acuity and degrees, visual acuity refers to the ability of the retina to distinguish images, while degrees refers to eye refraction. If you want to clarify the exact degree of your eyes, you need to go to a professional eye hospital for a computerized optometry or shadowing optometry examination. Usually for normal children and adults over the age of 8, a visual acuity of 5.0 is considered normal vision, at which point the patient is considered not to have myopia. When the test result is lower than the normal vision standard, myopia is considered to exist. Myopia is a type of refractive error, which is characterized by blurred vision in the distance and clear vision only when close to objects. People need to develop good eye habits and maintain eye hygiene. If you feel that your vision is declining, it is recommended that you go to the hospital for appropriate examinations, including visual acuity tests, dilated eye examinations and other related tests. After myopia is confirmed, the patient can choose frame glasses, corneal contact lenses, keratoplasty lenses or surgery for correction according to the patient’s age and current work and study status.