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Psychological Profile and Visual Function in Charles Bonnet Syndrome: A Preliminary Cross-Sectional Study
Emanuela Rellini1,2, Valeria Silvestri1,3, Margherita Guidobaldi1,3
1National Centre of Service and Research for the Prevention of Blindness and Vision Rehabilitation of the Visually Impaired-IAPB ETS, Fondazione Policlinico Universitario Agostino Gemelli, IRCCS, 00168 Rome, Italy.
Healthcare (Basel, Switzerland)
|April 14, 2026
Summary
Charles Bonnet Syndrome (CBS) affects 19% of visually impaired patients in rehabilitation. Poorer reading acuity in the worse eye is a risk factor, highlighting the need for screening and psychological support.
Area of Science:
- Ophthalmology
- Psychology
- Clinical Research
Background:
- Charles Bonnet Syndrome (CBS) involves visual hallucinations in individuals with vision loss.
- CBS is often under-recognized in clinical settings, particularly among visually impaired populations.
- Understanding CBS prevalence and associated factors is crucial for effective patient management.
Purpose of the Study:
- To determine the prevalence of Charles Bonnet Syndrome (CBS) in visually impaired patients.
- To compare the psychological profiles of patients with and without CBS.
- To identify potential predictors and risk factors for CBS.
Main Methods:
- A preliminary cross-sectional study involving structured clinical interviews and psychological assessments.
- Comparison between a CBS group and a matched control group (non-CBS).
- Evaluation of visual function parameters (BCVA, RA, CS, fixation stability, RS) and psychological status (SCL-90-R, PHQ-9, GAD-7).
Main Results:
- CBS was detected in 19% of the 120 participants.
- No significant differences in demographic or overall psychological scores between CBS and non-CBS groups.
- Poorer reading acuity (RA) in the worse eye was significantly associated with CBS; anxiety showed a significant association with hallucination occurrence.
Conclusions:
- CBS is prevalent in visual rehabilitation settings but often under-reported.
- Reduced reading acuity in the worse eye is a potential risk factor for CBS.
- Systematic screening and integrated psychological support are essential for managing CBS and improving well-being in visually impaired individuals.
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