Lid/Orbit
Orbital Cellulitis
Also known as: orbital cellulitis, postseptal cellulitis, orbital infection, post-septal orbital infection, subperiosteal abscess orbit, proptosis infection, restricted eye movement infection, sinusitis orbit complication
Clinical decision support only
Overview
Infection posterior to the orbital septum involving orbital tissues such as extraocular muscles, orbital fat, and optic nerve/blood supply structures. A sight-threatening and life-threatening emergency, most often from bacterial sinusitis. Distinguished from preseptal cellulitis by orbital signs such as pain with eye movement, restricted motility, diplopia, proptosis, reduced vision, RAPD, or chemosis.
What OptoGuide™ covers for orbital cellulitis
- Recognition patterns — symptoms, signs, and differentiators
- Don't-miss risks and escalation triggers
- Management tiers with linked Australian therapeutics
- Referral urgency, specialty, and letter drafting
Free clinical quick guides: symptom-led differentials and referral guides · vertex distance calculator · MBS optometry items