July 1984
Volume 25, Issue 7
Articles  |   July 1984
Influence of the corneal epithelium on the efficacy of topical antifungal agents.
Investigative Ophthalmology & Visual Science July 1984, Vol.25, 855-859. doi:
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      D M O'Day, W A Ray, W S Head, R D Robinson; Influence of the corneal epithelium on the efficacy of topical antifungal agents.. Invest. Ophthalmol. Vis. Sci. 1984;25(7):855-859.

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      © ARVO (1962-2015); The Authors (2016-present)

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A model of deep stromal Candida albicans infection was established by injecting 25 microliters of a suspension containing 5 X 10(9) colony forming units/ml of the yeast into corneas of pigmented rabbits. In this model, the infection lasts for more than 8 days. Using quantitative techniques, the authors compared the efficacy of six topical antifungal agents in the presence of an intact epithelium and in corneas debrided of epithelium. In corneas debrided on a daily basis, the polyenes (amphotericin B 0.15% and 0.075% and natamycin 5%) exhibited a significant antifungal effect. When the epithelium was left intact, 5% natamycin and 0.075% amphotericin B were without effect, while the efficacy of the 0.15% preparation of amphotericin B was much reduced. Removal of the epithelium appeared to affect adversely the efficacy of flucytosine. The imidazoles were not efficacious in this model.


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