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Preseptal cellulitis
Oculoplasty
Key Points
- •Preseptal cellulitis is infection anterior to the orbital septum - corresponds to Chandler Stage I - and is distinguished from orbital cellulitis by normal vision, normal eye movements, and no proptosis
- •CT orbit with contrast is the gold standard investigation when orbital cellulitis cannot be excluded; preseptal cellulitis shows pre-septal soft tissue thickening without post-septal changes
- •Ethmoid sinusitis is the most common source in children - the lamina papyracea is paper-thin and allows contiguous spread
- •Mild cases: oral amoxicillin-clavulanate (875 mg BD adult); moderate-severe or red flags: IV ceftriaxone OD +/- metronidazole; always reassess within 24–48 hours
- •Red flags for progression: developing proptosis, limited EOM, pain on eye movement, RAPD, decreasing VA, fever ≥38.5°C, failure to improve in 48h
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17 more sections are included with the Clinical plan.
- Definition
- Epidemiology
- Aetiology and causes
- Pathogenesis
- Classification
- Risk factors and associations