• Shashidhar Murthy, Nick R Hawksworth, and Ian Cree.
• Royal Glamorgan Hospital, Llantrisant, United Kingdom CF72 8XR.
• Cornea. 2002 Mar 1; 21 (2): 237-9.

PurposeTo report a case of progressive ulcerative keratitis related to the use of topical chlorhexidine gluconate 0.02%.MethodsA 45-year-old woman was treated for presumed Acanthamoeba keratitis with chlorhexidine gluconate 0.02% and propamidine 0.1% eyedrops.ResultsAfter using the chlorhexidine and propamidine eyedrops for 8 weeks, the patient developed a near total loss of the corneal epithelium and a progressive ulcerative keratitis, which eventually required penetrating keratoplasty. Histopathologic examination of the corneal button showed ulceration and loss of Bowman's membrane, massive loss of keratocytes with apparent apoptosis, and loss of the endothelial cells with inflammatory cells adherent to the remaining cells. These histopathologic findings are similar to those seen in Hibiclens keratopathy. Hibiclens contains chlorhexidine 4% with a detergent. No organisms were seen in sections stained with modified Ziehl-Neelsen, gram, Grocott, or periodic acid-Schiff, and immunohistochemistry showed no significant findings.ConclusionWe think that the topical use of chlorhexidine gluconate 0.02% may have resulted in a progressive ulcerative keratitis in our patient.

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