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. 1995 Feb;166(2):254-7.
doi: 10.1192/bjp.166.2.254.

The Charles Bonnet syndrome: a large prospective study in The Netherlands. A study of the prevalence of the Charles Bonnet syndrome and associated factors in 500 patients attending the University Department of Ophthalmology at Nijmegen

R J Teunisse  1 , J R Cruysberg, A Verbeek, F G Zitman
Affiliations

The Charles Bonnet syndrome: a large prospective study in The Netherlands. A study of the prevalence of the Charles Bonnet syndrome and associated factors in 500 patients attending the University Department of Ophthalmology at Nijmegen

R J Teunisse et al. Br J Psychiatry. 1995 Feb.

Abstract

Background: The aims were to determine the prevalence of the Charles Bonnet syndrome (CBS) in low-vision patients and analyse possible associated ophthalmic and sociodemographic factors.

Method: A semi-structured interview on visual hallucinations was given to 300 adult low-vision patients and 200 elderly general ophthalmic patients. Positive cases were examined with the Geriatric Mental State Schedule and the Mini Mental State Examination. Diagnostic criteria were as follows: complex, persistent, or repetitive visual hallucinations; full or partial retention of insight; no hallucinations in other modalities; and no delusions. Ophthalmic and sociodemographic data were gathered for all patients.

Results: The prevalence of CBS in low-vision patients was 11%. CBS was significantly associated with an age over 64 years and a visual acuity in the best eye of 0.3 or less. No significant associations with ophthalmic diagnoses, patient sex, marital status, or social circumstances were found.

Conclusion: Our findings support association of CBS with sensory deprivation and advanced age.

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Comment in

  • Charles Bonnet syndrome.
    Arya DK. Arya DK. Br J Psychiatry. 1995 Jul;167(1):114-5. doi: 10.1192/bjp.167.1.114b. Br J Psychiatry. 1995. PMID: 7551596 No abstract available.
  • Charles Bonnet syndrome.
    Fernandez A, Lichtshein G. Fernandez A, et al. Br J Psychiatry. 1995 Jul;167(1):115. doi: 10.1192/bjp.167.1.115a. Br J Psychiatry. 1995. PMID: 7551597 No abstract available.
  • Charles Bonnet syndrome.
    Ball C. Ball C. Br J Psychiatry. 1995 May;166(5):677-8. doi: 10.1192/bjp.166.5.677. Br J Psychiatry. 1995. PMID: 7620757 No abstract available.

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