Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Charles Bonnet syndrome

Visual hallucinations in elderly mentally healthy people. Those affected see objects as being smaller than their real size. This disease is due to old age, damage to the eyes or an alteration of the optic nerve. It is named after the naturalist Charles Bonnet of Geneva, who described it for the first time in 1760.

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