What causes periorbital edema in dacryocystitis?

Updated: Oct 08, 2019
  • Author: Grant D Gilliland, MD; Chief Editor: Edsel Ing, MD, MPH, FRCSC  more...
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This usually is related to the inflammation associated with the buildup of toxic debris on the surface of the eye and exotoxins secreted by staphylococcal organisms living on the surface of the eye.

Periorbital edema is most pronounced in the morning and subsides late in the day because of repeated contractures of the orbicularis muscle milking the edema from the soft tissues around the eye.

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