Abstract
To examine central corneal mechanical sensitivity (CCMS) after the instillation of latanoprost, travoprost, and bimatoprost. Nonrandomized interventional study. Latanoprost was used in 24 patients (43 eyes), travoprost in 21 patients (42 eyes), and bimatoprost in 15 patients (28 eyes). CCMS was examined with the Cochet-Bonnet esthesiometer before the instillation of prostaglandin analogs and then 5 and 30 minutes later. Examination of Schirmer and breakup time (BUT) tests were also performed. Thirty healthy subjects were examined as a control group. CCMS was significantly reduced at the 5-minute interval for latanoprost (P = .03), travoprost (P = .04), and bimatoprost (P = .04). Differences between the three analogs were statistically not significant. CCMS changes significantly correlated with Schirmer and BUT test scores. The correlation between CCMS reduction and BUT and Schirmer test scores implies that the use of artificial tears may be considered if prostaglandin analogs are administered.
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