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Case Reports
Journal Article
Repeated Intracameral Amphotericin B: A Safe Approach for Management of Fungal Anterior Chamber Reactivations After Therapeutic Penetrating Keratoplasty.
Cornea 2023 August 2
PURPOSE: The aim of this study was to describe the safe use of repeated intracameral amphotericin B for anterior chamber reactivations after therapeutic penetrating keratoplasty for Fusarium solani keratitis.
METHODS: A 49-year-old woman monthly soft contact lens wearer with a history of overuse and swimming in her lenses presented with a red painful left eye. Her vision was 0.5 logMAR and there was a poorly demarcated corneal infiltrate. Although corneal scrapes and a corneal biopsy were negative, confocal microscopy showed fungal hyphae. After failure of medical treatment, therapeutic penetrating keratoplasty was performed. Fusarium solani sensitive to amphotericin was isolated. There was pan-azole resistance. The patient was managed with topical amphotericin B, and repeated anterior chamber reactivations were managed with intracameral amphotericin B 5 µg in 0.1 mL on 9 occasions over 5 months after sensitivities were known. Topical cyclosporine was used as the sole immunomodulator postoperatively, with no topical steroid use over the 4-year follow-up period.
RESULTS: There were no episodes of graft rejection and no endothelial, lenticular, or retinal toxicity. The best-corrected visual acuity is -0.1 logMAR and the endothelial cell count is 2160/mm 2 .
CONCLUSION: This report describes the safe and effective use of repeated intracameral amphotericin (cumulative 45 µg) in anterior chamber reactivations after therapeutic penetrating keratoplasty and highlights the role of fungal sensitivity in guiding treatment in refractory cases. It also demonstrated the successful use of topical cyclosporin as the sole postoperative immunomodulatory therapy despite repeated recurrence of infection and consequent increased inflammation in the postoperative period.
METHODS: A 49-year-old woman monthly soft contact lens wearer with a history of overuse and swimming in her lenses presented with a red painful left eye. Her vision was 0.5 logMAR and there was a poorly demarcated corneal infiltrate. Although corneal scrapes and a corneal biopsy were negative, confocal microscopy showed fungal hyphae. After failure of medical treatment, therapeutic penetrating keratoplasty was performed. Fusarium solani sensitive to amphotericin was isolated. There was pan-azole resistance. The patient was managed with topical amphotericin B, and repeated anterior chamber reactivations were managed with intracameral amphotericin B 5 µg in 0.1 mL on 9 occasions over 5 months after sensitivities were known. Topical cyclosporine was used as the sole immunomodulator postoperatively, with no topical steroid use over the 4-year follow-up period.
RESULTS: There were no episodes of graft rejection and no endothelial, lenticular, or retinal toxicity. The best-corrected visual acuity is -0.1 logMAR and the endothelial cell count is 2160/mm 2 .
CONCLUSION: This report describes the safe and effective use of repeated intracameral amphotericin (cumulative 45 µg) in anterior chamber reactivations after therapeutic penetrating keratoplasty and highlights the role of fungal sensitivity in guiding treatment in refractory cases. It also demonstrated the successful use of topical cyclosporin as the sole postoperative immunomodulatory therapy despite repeated recurrence of infection and consequent increased inflammation in the postoperative period.
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