Preseptal vs Orbital Cellulitis: How to Tell the Difference and Why It Matters

Описание: Preseptal and orbital cellulitis may look similar at first glance, but confusing the two can have serious consequences. In this video, we walk through how to differentiate preseptal cellulitis from orbital cellulitis, why the orbital septum is the key anatomic divider, and how this distinction directly determines management and urgency.

You’ll learn:

The anatomy of the orbital septum and why it matters

Common causes of preseptal cellulitis, including hordeola, insect bites, and trauma

How sinus disease can lead directly to orbital cellulitis

Key clinical findings that separate benign from dangerous:

Vision changes

Proptosis

Ophthalmoplegia

Chemosis

Relative afferent pupillary defect (RAPD)

Why orbital cellulitis is a true medical emergency

When oral antibiotics are appropriate vs when hospitalization, imaging, and IV antibiotics are required

Pediatric considerations, including the risk of deprivation amblyopia

We also review real clinical cases, antibiotic choices such as Augmentin and Keflex, and reference American Academy of Ophthalmology (AAO) recommendations to reinforce evidence-based care.

This video is ideal for:

Optometry and ophthalmology students

Eye care professionals

Medical trainees

Clinicians who want a clear, practical approach to eyelid infections

⚠️ Bottom line: Preseptal cellulitis is common and often manageable. Orbital cellulitis is rare, dangerous, and potentially life-threatening. Knowing the difference saves vision and lives.

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