Is There An Alternative Medicine To Voriconazole?

A patient facing Kidney failure due to diabetes has been provided with CAPD in her body her age is 65 years, now she is facing serious fungal infection due to sinusytis and is on a dose of Voriconazole 300mg a day Last week she lost her sight and she has all side effects of this medicine Is their a hope of her servival and is there any alternative to this medicine