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Minimising the impact of Charles Bonnet Syndrome on the wellbeing of adults with acquired visual loss

   School of Psychology and Sport Science

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  Dr Keziah Latham, Dr S Morein-Zamir  Applications accepted all year round  Self-Funded PhD Students Only

About the Project

Research Group

Vision and Hearing Sciences Research Group

Proposed supervisory team

Dr Keziah Latham (Vision and Hearing)

Dr Jane Macnaughton (Vision and Hearing)

Dr Sharon Morein-Zamir (Psychology)


Charles Bonnet syndrome, visual hallucinations, visual impairment

Summary of the research project

Charles Bonnet syndrome (CBS) is the experience of visual hallucinations by people with visual impairment. CBS hallucinations vary widely between individuals, from simple geometric shapes and patterns to complete people, animals or entire scenes. CBS is most prevalent in those with recent acquired visual loss, but can vary in duration and frequency, and persist for many years. For many people, once they are aware of the normality of CBS, the hallucinations are perceived as neutral or even pleasant. However, for approximately one third of those experiencing CBS, the hallucinations have a ‘negative impact’, being frightening or disturbing to the person, and potentially impact on quality of life.

This project will evaluate the emotional impact of CBS, particularly for those with negative impact CBS, in order to guide better practice in identifying, managing and treating this condition. The project will involve development of skills in both qualitative and quantitative research methodologies, including interviews and their analysis and development and validation of a patient reported outcome measure. The software and facilities required for the project are available. Participants will be recruited in collaboration with the CBS-specific campaign ‘Esme’s Umbrella’.

Where you'll study



This project is self-funded.

Details of studentships for which funding is available are selected by a competitive process and are advertised on our jobs website as they become available.

Next steps

If you wish to be considered for this project, you will need to apply for our Optometry and Vision Sciences PhD. In the section of the application form entitled 'Outline research proposal', please quote the above title and include a research proposal.

Medicine (26)