Post-operative care is a critical part of the treatment process, even more important than the surgery itself. This is due to the strengthening of the levator muscle after surgery, which is the most dangerous complication of surgery. Normally, the human eye is transient at regular intervals in order to evenly coat the surface of the eye with tears, but after surgery, the incomplete closure of the eye causes the tears to not completely cover the eye, and the dry environment will be harmful to the eye, especially the cornea, so after surgery we require patients to have eye drops every 10-15 minutes, this is in the awake state . The risk increases exponentially during nighttime sleep because patients often cannot perceive the exposure of the cornea on their own after nighttime sleep, and if they do not take good care of it, they will often experience prolonged exposure, which over time will lead to the evil effect of corneal ulceration and even blindness. In some people, their corneas cannot rotate upward as normal during sleep, which is medically called Bell’s sign negative, and the risk of surgery is even greatly increased in such patients. Therefore, during sleep, we ask patients to seal the entire eye with erythromycin eye ointment intact before going to bed, and to take special care to slightly turn out the upper and lower eyelids when applying the ointment to avoid hurting the eye by sticking the eyelashes to the eye. After the early sealing procedure, the sutures that were left in place during the surgery are pulled upward and glued to the forehead to complete the sealing process. In the event that, due to negligence, the outer edge of the cornea becomes congested, the eye becomes painful, or the cornea becomes white scarred after the surgery, please consult the ophthalmologist at your local hospital immediately to avoid further complications.