Occasional flashes of light after retinal surgery are an uncomfortable symptom caused by the healing of the retinal injury site or a pull on the retina. Occasional flashes of light after retinal surgery are more common and are caused by abnormal stimulation of the retina. During the healing process of the retinal injury, the local newborn scar tissue is still functioning imperfectly, which may trigger the local retinal photoreceptor cells to be abnormally stimulated by bioelectricity, and cause the flash sensation. After retinal surgery, a proliferative membrane may form on the retinal surface, which will pull and stimulate the retina, also causing flashes of light in front of the patient’s eyes. After retinal surgery, patients are advised to follow the doctor’s instructions for care, regular checkups, and timely hospitalization when discomfort occurs.