A 11-year-old male Chihuahua was presented for treatment of an increasingly painful eye. Examination revealed marked blepharospasm and a fluorescein-positive keratitis of right eye. There was corneal opacity with raised yellowish lesion. Fungal keratitis was demonstrated by corneal scrape showing fungal hyphae. Treatment with systemic administration of itraconazole was successful in resolving the keratomycosis.