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PURPOSE: To evaluate the effects of topical betaxolol on experimental ocular inflammation. METHODS: Transcorneal diffusion of 25 μg/ml (7.09 x 10-2 mmol/L) of prostaglandin E2 (PGE2), placed in a glass cylinder, was employed to induce aqueous flare elevation in pigmented rabbits. Betaxolol was administered topically before PGE2 application. Aqueous flare was measured with a laser flare cell meter. RESULTS: Four-, two-, and one-time topical instillations of betaxolol inhibited the PGE2-induced aqueous flare elevation by 44% ± 8%, 32 ± 7%, and 8 ± 6% (mean ± SD), respectively. The inhibition of flare elevation was dependent on the number of betaxolol instillations. CONCLUSION: Topical betaxolol has an inhibitory effect on PGE2-induced aqueous flare elevation in rabbit eyes.
Dr. S. Yanagisawa, Department of Ophthalmology, Toyama Medical and Pharmaceutical University, Toyama-shi, Toyama-ken, Japan
11.3.4 Betablocker (Part of: 11 Medical treatment > 11.3 Adrenergic drugs)
11.4 Prostaglandins (Part of: 11 Medical treatment)