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  • Title: Comparison of efficacy and ocular surface toxicity of topical preservative-free methylprednisolone and preserved prednisolone in the treatment of acute anterior uveitis.
    Author: Hedayatfar A, Hashemi H, Asgari S, Chee SP.
    Journal: Cornea; 2014 Apr; 33(4):366-72. PubMed ID: 24351572.
    Abstract:
    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 (χ = 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.
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