Spontaneous enophthalmos associated with chronic maxillary sinusitis.

Enophthalmos and ptosis of the globe is usually a consequence of orbital trauma resulting in a blowout fracture of the orbital floor. Surgical exploration reveals a loss of inferior support due to a disruption of the bony orbital floor. We document five patients with a syndrome of spontaneous enophthalmos and ptosis of the globe unassociated with orbital trauma. The apparent dissolution of the orbital floor causes the loss of inferior support. There is a strong association with ipsilateral chronic maxillary sinus disease.