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  • Title: Calcofluor and ink-potassium hydroxide preparations for identifying fungi.
    Author: Arffa RC, Avni I, Ishibashi Y, Robin J, Kaufman HE.
    Journal: Am J Ophthalmol; 1985 Nov 15; 100(5):719-23. PubMed ID: 4061554.
    Abstract:
    Calcofluor and ink-potassium hydroxide preparations identified Fusarium solani, Aspergillus fumigatus, and Candida albicans, the three most common ocular fungal pathogens, in scrapings, biopsy specimens, and tissue sections of corneal mycotic infections in rabbits. These stains also identified fungal organisms in specimens from four human patients with keratomycoses. Neither procedure requires more than a few minutes to perform or extensive training or experience to interpret. The specimen stained with calcofluor can be examined immediately, but may not identify all fungi. The more sensitive ink-potassium hydroxide preparation should be examined after 18 to 24 hours, and is less likely to provide false-positive results than the calcofluor method.
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