This is a procedure performed to drain the fluid in cases of middle ear effusions. Middle ear effusion or glue ear is a condition in which fluid accumulates behind the ear drum due to eustachian tube dysfunction, usually precipitated by upper respiratory tract infections. The procedure involves making an incision in the eardrum and inserting a ventilation tube (grommet or T-tube). This is easily done under local anaesthesia in the adult patient. Children, however, require a short general anesthesia. It can be done as a day care procedure.