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doi: 10.1097/ICO.0000000000000039
Clinical Science

Comparison of Efficacy and Ocular Surface Toxicity of Topical Preservative-free Methylprednisolone and Preserved Prednisolone in the Treatment of Acute Anterior Uveitis

Hedayatfar, Alireza MD*,†; Hashemi, Hassan MD*,‡; Asgari, Soheila MSc*; Chee, Soon-Phaik FRCS(G), FRCOphth§,¶,‖,**

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Purpose: The aim of this study was to compare the antiinflammatory effect and ocular surface toxicity of topical nonpreserved methylprednisolone sodium succinate 1% and preserved prednisolone acetate suspension 1% for the management of acute anterior uveitis (AAU).

Methods: In this prospective, randomized, investigator-masked, comparative clinical trial, patients with mild-to-moderate noninfectious AAU were assigned randomly to receive either hourly nonpreserved methylprednisolone 1% (group A) or preserved prednisolone 1% (group B) eye drops followed by a 2-week tapering regimen. Anterior chamber cells and flare were clinically evaluated for the objective comparison of the antiinflammatory effect. The main outcome measure was the percentage of patients with a resolution of inflammation (anterior chamber cells <1+) on day 14. Ocular surface toxicity was assessed by means of the corneal fluorescein staining score, tear breakup time, Schirmer I test, and questionnaire-based grading of ocular discomfort parameters.

Results: Seventy-two eyes of 68 patients were studied, of which 38 eyes were enrolled in group A and 34 eyes were enrolled in group B. On day 14, 76.3% of the patients in group A had resolution of inflammation compared with 70.6% of the patients in group B, proving noninferiority (χ2 = 0.303, P = 0.582). The mean anterior chamber cell grade reduction for patients in group A was similar to that in group B (2.52 vs. 2.86, respectively; P = 0.92). Group A patients showed significantly lower corneal fluorescein staining scores (P < 0.001) and reported milder subjective ocular discomfort (0.55 vs. 1.43, P = 0.01) as compared with group B.

Conclusions: Both preparations demonstrated equal antiinflammatory effects for the treatment of AAU. Nonpreserved methylprednisolone eye drops exhibited a significantly lower ocular surface toxicity profile and milder subjective discomfort when compared with that exhibited by preserved prednisolone.

© 2014 by Lippincott Williams & Wilkins.


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