Do perfect pupil line after eye swelling belongs to a normal physiological phenomenon, because there will be some tiny trauma under the eyelid during the operation, the patient can be through the cold compress, oral medication, keep the trauma surface clean and reduce the amount of water before going to bed, etc., as follows:. 1. Appropriate cold compress: pupil line operation can be appropriate after the use of ice cold compress, but not ice or ice packs directly on the trauma. 2. Oral anti-inflammatory drugs: If the redness and swelling is more serious, the patient can take appropriate oral anti-inflammatory drugs, such as metronidazole, cephalosporin and so on. 3. Keep the trauma clean: the trauma should be kept clean and avoid water as much as possible during the 3-day period of doing perfect pupil line. 4. Sleeping and drinking less water: patients should avoid drinking too much water before going to bed in order to prevent the swelling of the eyes from worsening. Do perfect pupil line if the eye swelling has not subsided, it is recommended that patients go to the hospital in a timely manner to check, under the guidance of a professional doctor standardized treatment.