Objectives: The aim of this study was to evaluate the safety of preservative-free tafluprost in newly diagnosed patients and to confirm its efficacy in lowering intraocular pressure (IOP). Methods: Naïve patients were submitted to an ophthalmic examination, including ocular surface status and quality of life evaluation. All examinations were performed at baseline and after 1 and 6 months. Results: 28 patients were enrolled and treated with tafluprost, once a day, in the evening. TF-BUT changed from 9 (interquartile range (IQR) 6 - 11) s at baseline to 10 (IQR 7 - 10) s at 1 month (p = 0.106) and 9 (IQR 6 - 12) s at 6 months (p = 0.003). No eye developed corneal staining. Quality of life was (median (IQR)) 91.6 (79.2 - 95.8) at baseline and 95.8 (66.7 - 100) at 6 months (p = 0.62). Only a few adverse events occurred during the follow-up period (three patients experienced ocular burning and one developed redness). The mean IOP reduction was 5.5 mm Hg (95\% CI 3.8 - 7.2). The median (IQR) baseline IOP was 18.7 (15 - 23.7) mm Hg; 14 (13 - 16) mm Hg and 16 (14 - 16) mm Hg (p < 0.0001) after 1 and 6 months, respectively. Conclusion: No patient developed ocular surface disease and quality of life perception was preserved. Preservative-free tafluprost is therefore an effective drug that is safe for the ocular surface after 6 months of daily therapy.
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