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Ophthalmology. 1990 Aug;97(8):985-91.

Conjunctival cytologic features of primary Sjögren's syndrome.

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Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami School of Medicine, FL 33101.


To determine whether there are specific cytologic features associated with primary Sjögren's syndrome (SS), the authors evaluated impression cytology specimens from three conjunctival sites (temporal bulbar [TB], inferior bulbar [IB], and inferior tarsal [IT]) from 38 SS eyes, 34 eyes of aqueous tear-deficient patients without SS, 35 eyes of seborrheic blepharitis patients, and 17 eyes of normal controls in a masked fashion. The following features were observed more frequently in SS eyes than in the eyes of the other groups: squamous metaplasia of the TB and IB (P less than 0.05), extensive (greater than 75%) goblet cell loss of the TB (P less than 0.05), mucous aggregates of the bulbar conjunctiva (P less than 0.05), and inflammatory cells intercalated with epithelial cells on the IT conjunctiva (P less than 0.06). The conjunctival inflammatory cell infiltrate correlated with the presence of extensive squamous metaplasia (P less than 0.01) in SS specimens. The inflammatory cells on the IT conjunctival epithelium were found to consist predominantly of T-lymphocytes by immunofluorescent staining of cytologic specimens from six eyes. Based on these findings, the authors speculated that conjunctival squamous metaplasia, in addition to aqueous tear deficiency, may be due to primary involvement of the dysfunctional immune system of SS.

[Indexed for MEDLINE]

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