What is a chalazion?

Obstruction of the meibomian gland openings in the eyelids may result in an acute infection, but more commonly produces a chalazion. A chalazion appears as a lump near the eyelid margin, either on the upper or lower lid. Chalazia may resolve spontaneously over several weeks; however, applying hot fomentation over the closed lid helps the drainage of lipid material. Topical and systemic medication may be required to decrease the inflammation around the lump. If it does not resolve, incision and drainage may be necessary.