The Prevalence and Characteristics of Charles Bonnet Syndrome in Turkish Patients with Retinal Disease

Ophthalmologica. 2016;236(1):48-52. doi: 10.1159/000446295. Epub 2016 May 18.

Abstract

Purpose: The aim of this study is to investigate the prevalence and clinical characteristics of Charles Bonnet syndrome (CBS) in a group of Turkish patients with various retinal diseases.

Methods: Two hundred and sixty-four patients with a best-corrected visual acuity of ≤20/40 in the better-seeing eye were asked with a standardized question whether they had symptoms of CBS. If they responded positively, a questionnaire was verbally administered to learn more about the details of the symptoms.

Results: There were 125 (47.3%) females and 139 (52.7%) males with a mean age of 72.1 years (range 31-90). Seventeen (6.4%) patients were diagnosed with CBS. Three (17.7%) patients had noncomplex hallucinations and 14 (82.3%) had complex hallucinations.

Conclusion: CBS is not uncommon in visually impaired patients with retinal disease. Clinicians who care for visually impaired patients should be aware of CBS.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Female
  • Hallucinations / epidemiology*
  • Hallucinations / physiopathology
  • Humans
  • Male
  • Middle Aged
  • Prevalence
  • Prospective Studies
  • Retinal Diseases / complications*
  • Retinal Diseases / epidemiology
  • Surveys and Questionnaires*
  • Syndrome
  • Turkey / epidemiology
  • Visual Acuity / physiology*