fungal keratitis: An initial case report and species identification.

Purpose: To report the initial case of microbial keratitis caused by , a rare cause of fungal keratitis.

Observations: A 66-year-old gentleman with a complex right eye (OD) ocular history including herpes simplex virus infectious epithelial keratitis with subsequent neurotrophic keratopathy, and prior combined and fungal keratitis presented with pain OD in the absence of an antecedent trauma. The patient was found to have a filamentous fungal keratitis, which was subsequently cultured and identified as by the laboratory. Despite topical and oral antifungal treatment based on sensitivities determined by the lab, the patient ultimately required intrastromal and subconjunctival antifungal injections, corneal crosslinking, and superficial keratectomy with amniotic membrane to clinically improve. The fungal keratitis recurred twice, with each occurrence rapidly progressing to corneal perforation. Months after the second penetrating keratoplasty, the patient's mental status declined due to multiorgan failure. An occult pulmonary malignancy was discovered during this hospital stay, and the patient was lost to follow-up after entering hospice.

Conclusions And Importance: We report a unique case of fungal keratitis caused by and the subsequent management, including both medical and surgical interventions Despite a multimodal treatment regimen, this case demonstrates the recalcitrant and potentially recurrent nature of fungal keratitis caused by .