Pupil-diluting medication is usually used for about 3 weeks after retinal surgery, but the exact time of use is related to the patient’s condition, and the common pupil-diluting medication is atropine eye ointment. After retinal surgery, patients can use atropine eye ointment as prescribed by the doctor in order to fully anesthetize the ciliary muscle and control inflammation, which is also helpful for the recovery of vision. Atropine usually needs to be used for about 3 weeks, but the exact duration of use is related to the patient’s condition. If the patient’s intraocular inflammation is more severe, the time duration needs to be extended, and the patient needs to use the drug under the guidance of the doctor. Early after retinal surgery, patients need to avoid outdoor activities, because just after the completion of retinal surgery is dilated pupil, pupil dilation after the human body is afraid of light, in outdoor activities when too much light into the eye, for the eyes will cause visual fatigue, and will cause shyness, fear of light, and even a series of tears and other discomforts. It is recommended that postoperative retina patients follow the doctor’s instructions for care, regular checkups, and timely consultation when discomfort occurs.