Related Experiment Video
Updated: Jun 16, 2026

Ultrasonographic Evaluation of Salivary Glands for Sjogren's Syndrome: Diagnostic and Monitoring Insights
Published on: October 13, 2023
Rose bengal staining of the temporal conjunctiva differentiates Sjögren's syndrome from keratoconjunctivitis sicca
Barbara Caffery1, Trefford Simpson, Sunny Wang
1School of Optometry, University of Waterloo, Waterloo, Ontario, Canada. barbaracafferyeyes@yahoo.ca
Purpose:
To compare the clinical presentation of 231 patients with primary Sjögren's syndrome (pSS) with 89 patients with aqueous-deficient dry eye (keratoconjunctivitis sicca; KCS), to determine those procedures that best differentiate these groups in the eye care clinic.
Methods:
The records of all patients seen at the University Health Network Sjögren's Syndrome Clinic from October 1992 to July 2006 were reviewed and documented. The diagnosis of pSS was based on the AECC (American European Consensus Criteria) of 2002. KCS control subjects were non-SS patients with symptoms of dry eye and Schirmer scores of
Results:
Recursive partitioning of the full database demonstrated that the serum immunoglobulin Ro and the status of the salivary gland biopsy were most important in distinguishing pSS and KCS. The presence of rose bengal staining of the temporal conjunctiva was the most important noninvasive ocular variable that separated the groups. Total rose bengal staining also improved sensitivity. When only noninvasive techniques were used, staining of the temporal conjunctiva and severity of dry mouth symptoms were the major factors in distinguishing pSS from KCS.
Conclusions:
Rose bengal staining of the ocular surface is an important observation in the detection of SS and the differentiation of pSS and KCS.

