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Aspergillus terreus Infection in a Sutureless Self-sealing Incision Made During Cataract Surgery

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Abstract

Here, we describe a case of keratitis caused by Aspergillus terreus in an 80-year-old immunocompetent woman 1 month after uneventful cataract surgery. The patient presented with decreased visual acuity (20/50) and severe pain in her right eye. Examination revealed a 3.5 × 4.5 mm white-colored deep stromal infiltration located on the temporal corneal tunnel incision. Corneal scraping samples were obtained for cytological and culture examinations. The cinnamon-brown colonies consisting of a dense felt of conidiophores were identified as A. terreus using molecular data. Using CLSI M38-A2 microdilution method, minimum inhibitory concentration values of amphotericin B, itraconazole, voriconazole, and posaconazole were determined to be 2, 1, 0.25, and 1 μg/ml, respectively, and minimum effective concentration values of caspofungin and anidulafungin were ≤0.03 and ≤0.03, respectively, at 48 h for the A. terreus strain. Antifungal therapy was started as topical 1 % voriconazole drops hourly and 5 % natamycin ointment five times a day; however, corneal infection and melting progressed despite the ongoing intensive treatment and visual acuity dropped to the 20/200 level at the end of the first week. Amniotic membrane transplantation was performed to promote corneal healing. Topical medication was tapered and discontinued within 2 months based on the clinical features. The ulcer healed with scarring and vascularization, and visual acuity improved to 20/50. In conclusion, A. terreus is a very uncommon cause of mycotic keratitis and is especially rare after cataract surgery. We suggest that early and accurate diagnosis and appropriate treatment of A. terreus keratitis may have a major impact on preventing severe disease complications.

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Conflict of interest

SAA does not have any conflict of interest related to this manuscript. Otherwise, she has received research Grants from Pfizer and lecture honoraria from Merck, Pfizer, and Gilead. The other authors declare that no competing interests exist.

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Correspondence to Macit İlkit.

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Erdem, E., Kandemir, H., Arıkan-Akdağlı, S. et al. Aspergillus terreus Infection in a Sutureless Self-sealing Incision Made During Cataract Surgery. Mycopathologia 179, 129–134 (2015). https://doi.org/10.1007/s11046-014-9829-2

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