The surgery for meibomian gland, or blepharitis, which is divided into external and internal blepharitis, requires an incision on the skin or conjunctival surface, followed by complete removal of the pus and postoperative care as prescribed by your doctor. Blepharitis is usually caused by purulent bacteria that infect the eyelid glands. In the case of external blepharitis, an incision should be made in the skin, oriented parallel to the edge of the eyelid so that it is in line with the eyelid skin to minimize scarring, and then the pus should be drained from the pus cavity. For internal blepharitis, an incision is usually made from the conjunctival surface, oriented perpendicular to the eyelid margin to avoid excessive damage to the levator canaliculi, after which the pus cavity is completely cleared of pus. Follow the doctor’s instructions for good care after blepharoplasty, and seek medical attention for any discomfort.