Bonnet's syndrome (Charles Bonnet)

Alternative eponyms

Related people

Visual hallucinations in psychologically normal elderly people.

Description

Visual hallucinations in psychologically normal elderly people.

Charles Bonnet in 1760 described vivid, complex visual hallucinations in his psychologically normal 87 year old grandfather, who had cataract operations on both eyes and was practically blind. His grandfather saw pictures of men, women, birds, carriages, buildings, tapestries and scaffolding patterns.

Most affected persons are elderly and psychologically normal, but visually impaired. However, the phenomenon is not exclusively restricted to people with visual impairment.

Bibliography

  • C. Bonnet:
    Essai analytique sur les facultés de l'âme.
    2nd edition. Copenhagen 1769; volume 2: 176-178.
    First edition, Copenhagen, 1760.

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