I. Pre-operative instructions for intravitreal injection therapy: 1. 3 days before surgery, surgical eye medication, 4 times a day, 1 drop each time, 12 times in total for 3 consecutive days. 2. You need to bring your medical record on the day of surgery. Beijing Hospital Ophthalmology Department, Hong Dai II. Intravitreal injection treatment time: Every Monday afternoon, Thursday morning III. 2. The next day after the operation, register for a general outpatient review. 4. One month after intravitreal injection: 1.Register for the specialist number 2.Check the distance vision at the triage desk (Location: Ophthalmology Clinic on the 3rd floor of the outpatient building) 3.Measure the intraocular pressure (Location: Ophthalmology Clinic on the 3rd floor of the outpatient building) 4.Check the near vision and dilated pupil (Location: Room 417 on the 4th floor of the treatment building) 5.Check the OCT (Location: Room 423 on the 4th floor of the treatment building) 6.Go back to the outpatient clinic to see the specialist number