Charles-Bonnet syndrome

Charles-Bonnet syndrome occurs in patients with loss of vision (usually due to ocular pathology) who experience visual hallucinations

Although numerous causes are seen (any cause of gradual ocular visual failure can theoretically produce Charles Bonnet syndrome, as can other locations for visual loss, e.g. optic chiasm, optic radiation, and occipital lobes), the most common is macular degeneration 1; representing how prevalent this condition is. Therefore, not surprisingly, elderly patients are most commonly affected 1.

Patients typically experience hallucinations when awake with eyes open, typically in the evenings or at night 1. The hallucinations themselves are not stereotyped (i.e. they vary from day to day), and patients have insight into the fact that these are not real, and tend not to be distressed by them 1.

Imaging of the brain is two-fold:

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Article information

rID: 29701
Synonyms or Alternate Spellings:
  • Charles Bonnet syndrome

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