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Article
September 1983

Schirmer's TestA Closer Look

Author Affiliations

From the Cornea Service (Drs Clinch, Benedetto, and Laibson) and Research Division (Dr Felberg), Wills Eye Hospital, Philadelphia.

Arch Ophthalmol. 1983;101(9):1383-1386. doi:10.1001/archopht.1983.01040020385009
Abstract

• In 50 normal subjects, results of kinetics studies of Schirmer's test demonstrated nonlinear wetting with an initial rapid phase of wetting followed by a progressive reduction in rate. This initial rapid phase of wetting indicated a reflex secretion of tears. In the majority of subjects, topical anesthesia with 0.5% proparacaine hydrochloride dampened the initial reflex secretion but could not completely suppress it. The data indicated that Schirmer's test with anesthesia was not capable of measuring a basic tear secretion independent of reflex components.

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