The facial orbit is the cavity or socket of the skull in which the eye and its appendages are situated.  Orbital imaging is used to discover tumors, infection, chronic diseases, and optic neuropathy.  Other conditions evaluated with orbital imaging include papilledema (swelling head of the optic nerve), enlarged eye muscles (seen in thyroid conditions), infection or tumors of the lacrimal gland, and enlargement of vessels that supply and drain the eye area.