THE PURPOSE of this paper is to call attention to a mild type of dacryocystitis, usually mucoid in character, which is often the unsuspected cause of persistent conjunctivitis, or of unexplained tearing. This clinical entity may be called the "silent" type of dacryocystitis. For the most part, the patients comprising the present series had been treated for long periods by conventional methods, without improvement. In almost every case the lacrimal sac had been declared normal because irrigation had revealed its patency. Yet when irrigation of the lacrimal passages was performed with the purpose of collecting and examining the washings, certain clinical and bacteriologic evidence was obtained indicating inflammation of the lacrimal sac. The clinical evidence consisted in mucus, mucopus or small amounts of frank pus in the collected fluid washed through the lacrimal passages. Bacteriologically, cultures of both the conjunctiva and the material in the washings usually revealed the same
THEODORE FH. "SILENT" DACRYOCYSTITIS. Arch Ophthalmol. 1948;40(2):157–162. doi:10.1001/archopht.1948.00900030162007
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