Abstract
To report the successful treatment of 3 cases of recalcitrant fungal keratitis (FK) with high-dose oral posaconazole. This is a series of 3 patients from a single academic center with a culture-positive FK who were treated with oral posaconazole after failing to respond to conventional treatments. All 3 patients had a history of contact lens wear. Two of the 3 cases were culture positive for Fusarium and the other for Paecilomyces . The infections of all 3 failed to respond to conventional antifungal therapies including varying combinations of topical, systemic, and intraocular antifungal therapies. All 3 cases rapidly responded to high-dose oral posaconazole ranging from 500 to 600 mg once daily. In 1 case, multiple courses of high-dose therapy were required to treat delayed recurrences of a latent infection. There were no significant adverse effects with the elevated dose, and treatment was administered with the guidance of an infectious disease specialist. In cases of recalcitrant FK failing to respond to conventional therapies, high-dose posaconazole, in the delayed-release tablet formulation, can be an effective treatment option.
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