A chalazion is a granulomatous and cystic mass in the eyelid caused by the obstruction and chronic inflammation of a sebaceous gland (meibomian gland). Unlike a stye, it is typically non-infectious but can become large, chronic, and cosmetically bothersome. If it does not respond to conservative treatments such as warm compresses, surgical drainage of the cyst is performed.
Before procedure
It is typically a short outpatient procedure performed under local anesthesia. No special preparation is required other than washing the face. You should discuss any bleeding disorders and medications such as aspirin and warfarin with your ophthalmologist.
After procedure
After the procedure, a pressure dressing is applied over the eye, which must be kept in place for several hours. Continued warm compresses for several days help to drain any remaining contents and reduce inflammation. The use of antibiotic ointment as directed is essential to prevent infection.
Complication and alarm signs
Surgical site infection accompanied by redness, pain, and purulent discharge, recurrence of chalazion at the same site or another location on the eyelid, formation of a scar (cicatrix) inside the eyelid which may affect the corneal surface. Subconjunctival hemorrhage (redness of the white of the eye) sometimes occurs, which is usually harmless and resolves spontaneously.