A case of a woman with visual hallucinations in the absence of other
organic or psychiatric findings--symptoms consistent with a diagnosis of
Charles Bonnet syndrome--is reported. The women was HIV positive, although
asymptomatic for conventional complications of HIV infection. After
considering possible causes of the hallucinations, including prescription
drug effects and conversion or factitious disorder, the authors suggest
that the woman's symptoms may have been associated with undetectable
effects of HIV on the brain.