Int Ophthalmol 2018 Apr 18;38(2):849-854. Epub 2017 Apr 18.
First Department of Ophthalmology, National and Kapodistrian University of Athens, Mesogeion Ave 154, 156 67, Athens, Greece.
Purpose: To describe a technique for intracorneal application of voriconazole into the supradescemetic space in a case of deep recalcitrant Candida parapsilosis keratitis of a penetrating cornea graft.
Methods: A deep intracorneal incision reaching the center of the corneal infiltrate was created with a 20-gauge MVR blade. Then, a 27-gauge hydrodissection cannula was inserted deep into the corneal pocket, and 0.1 ml of voriconazole 0.5 mg/ml was injected until a bullous detachment of Descemet membrane (DM) covered 1/3 of the graft's area. DM detachment was documented by anterior segment optical coherence tomography (AS-OCT).
Results: AS-OCT confirmed the creation of a drug depot in the supradescemetic space, which partially regressed during the following hours; 24 h after the injection, a complete reattachment of DM was documented. After 4 weeks, the stromal infiltrate has cleared completely and no signs of recurrence were observed 3 months after injection.
Conclusion: In the present case, the supradescemetic voriconazole injection led to resolution of a deep recalcitrant fungal infiltrate. The herein described technique could be tried in similar cases, where an intrastromal injection is indicated, as it may offer a larger intracorneal drug depot.
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