Answers are grounded in this paper and cite their sources.
GCD, RBS, and TBUT were better predictors of morphological and cytological changes in the conjunctiva than Schirmer's in dry eye syndrome. The sensitivity of tear function tests in diagnosing dry eye was TBUT > Schirmer's > RBS, and the specificity was Schirmer's > TBUT > RBS in decreasing order when CIC was considered the gold standard.
No takes yet. Share an insight, caveat, or question.
Kumar et al. (2014) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: