Penetration of topically applied levofloxacin into eyes with thin-wall filtering bleb after trabeculectomy

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Abstract

Purpose: To investigate the comparative penetration of 0.3% levofloxacin eye drops into the aqueous humour between cataract patients with or without (control) thin-wall filtering blebs. Methods: One drop of 0.3% levofloxacin was administered to the eyes at 30-min intervals for 3.5 h before phacoemulcification for both groups. Aqueous humour samples (0.1-0.2 ml) were aspirated during surgery. The concentration of levofloxacin in the aqueous humour was determined by high-performance liquid chromatography. The Student's t-test, Pearson correlation, and χ2 test were used to compare the data of the two groups. A P<0.05 was required for results to be considered statistically significant. Results: The levofloxacin concentration in the aqueous humour was significantly increased (P<0.0001) in the bleb (mean+SD: 3.7±2.3 μg/ml) vscontrol group (0.4±0.2 μg/ml). Intraocular pressure and the bleb area were not correlated with levofloxacin concentration. Conclusion: The presence of thin-wall filtering blebs increases intraocular penetration of topically administered levofloxacin.

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APA

Qiao, L. Y., Wang, N. L., Liang, Y. B., Zhu, S. Q., Wan, X. H., & Lee, P. Y. (2008). Penetration of topically applied levofloxacin into eyes with thin-wall filtering bleb after trabeculectomy. Eye, 22(5), 666–670. https://doi.org/10.1038/sj.eye.6702712

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