Visual acuity of 5.1 is considered normal vision and does not require special intervention in the absence of special discomfort. Visual acuity of 5.1 is the international standard visual acuity chart for visual acuity examination results, is within the normal range, usually without glasses naked eye visual acuity of 5.0 or above are normal visual acuity. 5.1 visual acuity corresponds to the decimal recording method of 1.2 visual acuity, than most of the normal visual acuity is better than the majority of the normal visual acuity, if there is no other ocular discomfort does not usually need special treatment. If the patient has blurred vision, vision loss, etc., you need to go to the hospital for a professional examination to see whether refractive error, and exclude fundus lesions, under the guidance of the doctor for the next diagnosis and treatment. Patients with normal vision should also pay attention to maintaining good eye habits, paying attention to eye time, reducing video games and other bad habits, and regular checkups. It is recommended that patients with vision loss should consult a doctor in time to evaluate their condition and follow the doctor’s instructions for treatment.