Efficacy of topical caspofungin in experimental fusarium keratitis.

PURPOSE: To evaluate the efficacy of caspofungin in an experimental rabbit model of Fusarium keratitis and to compare it with amphotericin B.

METHODS

Eighteen New Zealand white rabbits were randomly divided into 2 treatment groups and 1 control group. One cornea of each rabbit was inoculated with Fusarium solani spores. The first group received topical amphotericin B 0.15%, the second group received topical caspofungin 1%, and the control group received topical balanced salt solution hourly for 2 days and then 4 times daily for 3 additional days. Treatment effects were evaluated by clinical assessment at days 3 and 5 and by fungal culture after 5 days of treatment.

RESULTS

In the treatment groups, progression of keratitis was inhibited, and cultures were sterile at the end of the study. In the control group, keratitis progressed, and cultures were positive for F. solani.

CONCLUSIONS

Topical caspofungin is effective in Fusarium keratitis, and clinical efficacy studies seem justified.