• Uncommon
• Life threatening
• Originate from upper anterior tooth infection – via facial artery, angular artery, ophthalmic vein, pterygoid plexus
• Can result in blindness or death

Clinical:

• Gross edema of eyelid, associated with pulsating exopthalmus
• Due to venous obstruction
• Cyanosis
• Ptosis
• Fixed dilated pupil
• Limited eye movement

Systemic symptoms:

• Serious illness
• Rigours
• High swinging fever
• Deteriorating eyesight

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