NCIt definition : Inflammation of the eye tissues posterior to the orbital septum, and generally secondary
to an infection spread from adjacent sinuses. Signs and symptoms of the affected eye
include sudden loss of vision, erythema, edema, decreased eye movement, and pain.
Treatment is conducted via intravenous antibiotics, observation, and surgical intervention
when necessary.;
Alternative definition : NICHD: An infection of the orbital tissue, posterior to the orbital septum.;