Usually adult naked visual acuity of 4.6 indicates that the patient’s vision is not normal, considering refractive error, eye diseases, etc., need to be in the premise of clear causes, through life adjustments, wearing glasses, medication (cefazolin, etc.) and surgical treatment, etc., the specific treatment modalities are related to the patient’s condition. 1. Refractive error: the patient’s naked eye visual acuity of 4.6 is lower than the normal level, and there may be astigmatism, nearsightedness or farsightedness, etc. The patient needs to do a dilated optometry examination first, to clarify the type of refractive error and the degree of visual acuity, and then choose to wear contact lenses, frames, etc. to improve. If you are over 18 years old and your vision is stable, refractive surgery is also available to improve your vision. 2. Eye diseases: patients with vision loss may also be glaucoma, keratitis, cataracts and other diseases, glaucoma patients can follow the doctor’s instructions to use the hairy fruit rutaecarpine eye drops and other medications or trabeculectomy and other surgical treatments. Patients with keratitis can be treated with tobramycin eye drops, while patients with cataract can be treated with cataract ultra-lacteal combined with IOL implantation surgery. It is recommended that patients with vision loss should consult a doctor in a timely manner to clarify the cause of the disease and strictly follow the doctor’s instructions for treatment to improve their vision.