Unilateral proptosis, pain, fever, decreased ocular motility, erythema, and edema of the eyelids?
Infectious orbital cellulitis
- usually bacterial
- extended posterior to orbital septum
- meningitis
- cavernous sinus thrombosis
- staphylococci. streptococci. anaerobes, and Haemophilus influenza (in children under 5 years of age)
- most common source -- ethmoid sinusitis
- intravenous antibiotics