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Dacryocystitis is an inflammation of the lachrymal sac, generally accompanied by a catarrhal condition of the entire lachrymal passage. The disease seldom, if ever, originates in the sac, but is a complication of trouble in the nasal passage induced by obstruction of the lower opening of the duct, or inflammation of the nasal membrane, or periostitis. These are the principal causes, and almost invariably originate below and extend upward to the sac. Inflammatory conditions of the conjunctival sac rarely produce dacryocystitis.
The disease is easily diagnosed by tenderness and swelling over the sac with edema extending to the lids, swollen caruncle with epiphoria, and puncta swollen to twice the usual size. This condition always develops stricture which, as a rule, is situated below the sac, except in those cases where the duct is obstructed at its lower opening by deformity of the turbinated bones closing in the nasal end of
TAYLOR PR. DACRYOCYSTITIS. JAMA. 1896;XXVI(1):27–28. doi:10.1001/jama.1896.02430530027001l
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