Naked eye vision of 4.8 is lower than the normal value of 5.0, patients can wear glasses, medication, surgery and other ways of treatment to improve vision, the specific treatment is related to the patient’s condition. Loss of vision is a common symptom of many ophthalmologic diseases, so at present only the performance of vision loss, can not diagnose the specific cause, must go to the hospital ophthalmology department for appropriate examination to find the cause, for the cause of the treatment. If the vision loss is caused by refractive error, the patient can wear glasses or refractive surgery to correct the refractive error and improve vision. If the vision loss is caused by conjunctivitis, patients can follow the doctor’s instructions to use tobramycin eye drops and other drugs to control inflammation and promote recovery. It is recommended that patients with vision loss consult a doctor to assess their condition and choose the appropriate treatment as prescribed by the doctor.