Abstract
With one exception, a case report of amantadine-induced corneal toxicity has described reversible corneal edema. To report a patient with unrecognized amantadine-induced corneal edema. Patient with schizophrenia and tardive dyskinesia developed bilateral corneal edema while receiving chronic amantadine hydrochloride. Both eyes underwent successful phakic Descemet's stripping automated endothelial keratoplasty, and histopathologic examination of the excised host tissue was performed. Despite initial clearing of the donor lenticules, both eyes later experienced nonimmunologic graft failure, probably related to continued amantadine corneal toxicity. After discontinuation of the amantadine, one graft demonstrated partial clearing. Histopathology demonstrated endothelial cell loss. Specular microscopy demonstrated pleomorphism and disruption of the orderly hexagonal array. Chronic amantadine hydrochloride therapy may be responsible for irreversible corneal edema and may lead to graft failure in unrecognized cases.
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