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Abstract #53184 Published in IGR 15-1

Tear clearance and ocular symptoms in patients treated with preservative-free prostaglandins

Giménez-Gómez R; García-Catalán MR; Gallardo-Galera JM
Archivos de la Sociedad EspaƱola de Oftalmologia 2013; 88: 88-91


OBJECTIVES: To assess the effects on dry eye symptoms and tear dynamics of switching from a prostaglandin with a preservative to a preservative-free prostaglandin. MATERIAL AND METHODS: Fourteen patients (N=28 eyes) with open-angle glaucoma and dry eye symptons, treated with preserved latanoprost, travoprost or bimatoprost were included in this uncontrolled prospective study. Ocular symptoms were analysed using a validated ocular surface disease questionnaire and ocular signs were assessed with tear clearance, Schirmer and tear function index test (TFI=Schirmer/clearance). Patients were assigned to preservative-free tafluprost treatment, and measurements were repeated 4 weeks after change of medication. Wilcoxon test and Spearman correlation coefficient were used in the statistical analysis. RESULTS: No statistically significant difference in intraocular pressure (IOP) was observed after switching to tafluprost. Mean IOP at baseline was 20.4mmHg (SD2.2) and after 4 weeks 19.9mmHg (SD2.6), (P>.05). The mean questionnaire score significantly decreased from 9.7 (SD3.7) at baseline to 5.4 (SD2.7) after one month (P<.001). No significant differences in tear clearance, Schirmer or TFI were found (P>.05). At baseline, tear clearance=0.13 (SD0.07), Schirmer=10.7mm (SD6) and TFI=80 (48-156). After 4 weeks, tear clearance=0.1(SD0.07), Schirmer=9.5mm (3.9) and TFI=104 (48-216). A significant association between questionnaire score and tear clearance after 4 weeks was observed (Spearman coefficient=0.62; P=.014). CONCLUSIONS: Switching from preservative prostaglandin with a preservative to preservative-free tafluprost treatment improves dry eye symptoms and suggests an improvement in TFI.

Servicio de Oftalmología, Hospital Reina Sofía, Córdoba, España.

Full article

Classification:

11.16 Vehicles, delivery systems, pharmacokinetics, formulation (Part of: 11 Medical treatment)
12.4 Laser trabeculoplasty and other laser treatment of the angle (Part of: 12 Surgical treatment)
2.1 Conjunctiva (Part of: 2 Anatomical structures in glaucoma)



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