Dacryocystitis is an infection of the nasolacrimal sac, frequently caused by nasolacrimal duct obstruction. The term derives from the Greek dákryon (tear),^[1] cyst (sac), and -itis (inflammation). It causes pain, redness, and swelling over the inner aspect of the lower eyelid and epiphora. When nasolacrimal duct obstruction is secondary to a congenital barrier it is referred to as dacrocystoceles. It is most commonly caused by Staphylococcus aureus and Streptococcus pneumoniae.^[2] The most common complication is corneal ulceration, frequently in association with S. pneumoniae.^[2] The mainstays of treatment are intravenous antibiotics, warm compresses, and relief of nasolacrimal duct obstruction by dacryocystorhinostomy.^[2]

[edit] Clinical features

• Pain, swelling, redness over the lacrimal sac at medial canthus
• Tearing, crusting, fever
• Digital pressure over the lacrimal sac may extrude pus through the punctum
• In chronic cases, tearing may be the only symptom

[edit] See also

• Dacryocystocele

[edit] References

[edit] External links

• Encyclopaedia Britannica Dacryocystitis
• Dacrocystocele
• Timo cystitis
• Dacrocystocele
• Dacrocystitis or Infection of a Timo cyst

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