Orbital emphysema during air travel: a case report.

Orbital emphysema is a well-recognized complication of fractures involving the orbit. Commonly, this follows nose blowing and occurs in the subcutaneous tissues. A case of emphysema within the orbital cavity caused by the pressure changes during air travel is presented. The clinical picture was similar to that seen in retrobulbar haemorrhage and required early surgical intervention. Circumstances where patients at risk may be exposed to abnormal atmospheric pressures are highlighted and the management of the condition is discussed.