Uncommon
Visual release hallucinations
Experience of hallucinations by blind people
Experience of hallucinations by blind people
Visual release hallucinations, also known as Charles Bonnet syndrome (CBS), are a type of psychophysical visual disturbance in which a person with partial or severe blindness experiences visual hallucinations. First described by Charles Bonnet in 1760, the term Charles Bonnet syndrome was first introduced into English-speaking psychiatry in 1982. A related type of hallucination that also occurs with lack of visual input is the closed-eye hallucination.
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