Template:Periorbital swelling DDX

Proptosis

1. Normal IOP
   1. Orbital cellulitis
   2. Pseudotumor
   3. Orbital tumor
2. Increased IOP
   1. Retrobulbar abscess
   2. Retrobulbar emphysema
   3. Orbital hematoma
   4. Orbital tumor

No proptosis

• Periorbital cellulitis/erysipelas
• Dacryocystitis (lacrimal duct)
• Allergic reaction
• Nephrotic Syndrome (pediatrics)
• Dacryocele
• Dacryostenosis
• Dacryoadenitis

Lid Complications

1. Blepharitis (crusts)
2. Chalazion (meibomian gland)
3. Stye (Hordeolum) (eyelash folicle)