Changes in Ocular Surface Characteristics after Switching from Benzalkonium Chloride-Preserved Latanoprost to Preservative-Free Tafluprost or Benzalkonium Chloride-Preserved Tafluprost

Figure 3

Changes in AD scores in the Tafluprost and PF-Tafluprost groups. No significant difference was observed in the Tafluprost group. No significant improvement in keratopathy was observed in the PF-Tafluprost group at 4 weeks, but significant improvements were observed at 12 weeks.  paired t-test,