The Charles Bonnet Syndrome associated with vascular pathology – a classical presentation with a very atypical course

1991 ◽  
Vol 8 (1) ◽  
pp. 44-45 ◽  
Author(s):  
Clive G Ballard ◽  
Ramalingam N Chithiramohan ◽  
Sumithra Handy
Keyword(s):  
Vascular Pathology ◽  
Visual Images ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Insight Into

AbstractWe present a case of the Charles Bonnet syndrome the onset of which appears to have been associated with vascular pathology. The syndrome typically involves the appearance of mute, colourful and pleasing visual images with the retention of insight into their hallucinatory nature. However, the case progressed in a very atypical way and a system of paranoid delusions developed around the visual hallucinations. The syndrome is reviewed and the possible reasons for the atypical course discussed.

scholarly journals An overview of psychological and social factors in Charles Bonnet syndrome

2021 ◽  
Vol 13 ◽  
pp. 251584142110347
Author(s):  
Lee Jones ◽  
Lara Ditzel-Finn ◽  
Jamie Enoch ◽  
Mariya Moosajee
Keyword(s):  
Emotional Response ◽  
Causal Mechanism ◽  
Visual Hallucinations ◽  
Cognitively Normal ◽  
Charles Bonnet Syndrome ◽  
Raising Awareness ◽  
Normal Individuals ◽  
The Social ◽  
Recent Developments ◽  
Insight Into

Charles Bonnet syndrome (CBS) is a condition where cognitively normal individuals with sight impairment experience simple and/or complex visual hallucinations. The exact pathogenesis of CBS is unknown; however, deafferentation is often recognised as a causal mechanism. Studies have provided insight into the multifaceted impact of CBS on wellbeing. Onset of CBS may cause distress among those believing visual hallucinations are indicative of a neurological condition. Hallucinatory content is often congruent with the emotional response. For example, hallucinations of a macabre nature typically result in a fearful response. Visual hallucinations may be highly disruptive, causing everyday tasks to become challenging. Clinical management relies on forewarning and pre-emptive questioning. Yet, knowledge and awareness of CBS is typically low. In this review, we provide a summary of the social and psychological implications of CBS and explore recent developments aimed at raising awareness and improving patient management.

FDG-PET Scanning Shows Distributed Changes in Cortical Activity Associated with Visual Hallucinations in Eye Disease

2019 ◽  
Vol 19 (1) ◽  
pp. 84-89 ◽  
Author(s):  
Lütfü Hanoglu ◽  
Sultan Yildiz ◽  
Tansel Cakir ◽  
Taha Hanoglu ◽  
Burak Yulug
Keyword(s):  
Visual Cortex ◽  
Fdg Pet ◽  
Underlying Mechanism ◽  
Posterior Cingulate Cortex ◽  
Eye Disease ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Pet Scanning ◽  
Inferior Parietal Cortex ◽  
Visual Deafferentation

Background and Objective: Charles Bonnet Syndrome (CBS) has been defined as complex visual hallucinations (CVH) due to visual loss. The underlying mechanism of CBS is not clear and the underlying pathophysiology of the visual hallucinations in CBS patients and pure visually impaired patients is still not clear. </P><P> Methods: In our study, we have scanned three patients with eye disease and CBS (VH+) and three patients with eye disease without CBS (VH-) using FDG-PET. Results: Our results showed underactivity in the pons and overactivity in primary right left visual cortex and inferior parietal cortex in VH- patients and underactivity in left Broca, left inf frontal primary visual cortex and anterior and posterior cingulate cortex in VH+ patients relative to the normative 18FFDG PET data that was taken from the database consisting of 50 age-matched healthy adults without neuropsychiatric disorders. Conclusion: From this distributed pattern of activity changes, we conclude that the generation of visual hallucination in CBS is associated with bottom-up and top-down mechanism rather than the generally accepted visual deafferentation-related hyperexcitability theory.

Visual Hallucinations in Charles Bonnet Syndrome Can Be Seen in Fluorodeoxyglucose-PET

2011 ◽  
Vol 23 (4) ◽  
pp. E38-E39 ◽  
Author(s):  
Niklas Garde ◽  
Thomas Skripuletz ◽  
Refik Pul ◽  
Georg Berding ◽  
Karin Weissenborn ◽  
...  
Keyword(s):  
Visual Hallucinations ◽  
Charles Bonnet Syndrome ◽  
Fluorodeoxyglucose Pet

Charles Bonnet syndrome as first manifestation of occipital infarction

2022 ◽  
pp. 112067212110697
Author(s):  
Marta Isabel Martínez-Sánchez ◽  
Gema Bolívar
Keyword(s):  
Visual Acuity ◽  
Visual Field ◽  
Field Tests ◽  
Visual Field Loss ◽  
Visual Hallucinations ◽  
Correct Treatment ◽  
Cerebral Magnetic Resonance Imaging ◽  
Full Field ◽  
Charles Bonnet Syndrome ◽  
The Right

Purpose To describe a case of Charles Bonnet syndrome as the first manifestation of occipital infarction in a patient with preserved visual acuity. Observations We report a 78-year-old man followed in our department with a two-month-long history of visual hallucinations based on the vision of flowers and fruits intermittently, being perceived as unreal images. Best-corrected visual acuity was stable in the follow-up time being 20/20 in the right eye and 20/25 in the left eye. Extraocular muscle function testing, pupillary reflexes, biomicroscopy, fundus and optical coherence tomography examinations did not reveal any interesting findings. In order to rule out occipital pathology, orbital-cerebral magnetic resonance imaging was performed, showing an image compatible with the chronic ischemic right occipital lesion. The patient was diagnosed with Charles Bonnet syndrome secondary to occipital infarction and neurology decided that no treatment was required. 24-2 and 10-2 visual field tests showed no remarkable alterations and Full-field 120 point screening test showed nonspecific peripheral defects. Hallucinations improved over the months, being described as not annoying and increasingly infrequent. Conclusions and Importance Charles Bonnet syndrome is a condition characterized by the presence of recurrent and complex visual hallucinations in patients with visual pathway pathologic defects. Visual acuity or visual field loss is not a requirement for diagnosis. Charles Bonnet syndrome should be suspected in all patients with non-disturbing visual hallucinations, even though they present good visual acuteness. It will be essential to perform complementary explorations to identify the underlying pathology that allows the starting of a correct treatment option.

Visual Hallucinations and Sensory Delusions in the Elderly

1984 ◽  
Vol 144 (6) ◽  
pp. 662-664 ◽  
Author(s):  
G. E. Berrios ◽  
P. Brook
Keyword(s):  
Psychiatric Diagnosis ◽  
The Elderly ◽  
Visual Hallucinations ◽  
Cognitive Score ◽  
Charles Bonnet Syndrome

SummaryOne hundred and fifty successive referrals to a psychogeriatrician were assessed for visual hallucinations. Forty-four (29.33 per cent) patients reported visual perceptual disturbances. No differences between hallucinators and non-hallucinators were found in terms of sex, age, length of illness, underlying psychiatric diagnosis or cognitive score. There was a significant correlation between presence of hallucinations and eye pathology (<.001) and delusions (<.001). The phenomenological characteristics of the visual hallucinations are analyzed. The “picture” sign is described in 7 patients and the Charles Bonnet syndrome in two. The significance of these findings is discussed.

Charles Bonnet syndrome: Successful treatment of visual hallucinations due to vision loss with Yi-gan san

2009 ◽  
Vol 33 (2) ◽  
pp. 382-383 ◽  
Author(s):  
Tsuyshi Miyaoka ◽  
Michiharu Nagahama ◽  
Keiko Tsuchie ◽  
Maiko Hayashida ◽  
Akira Nishida ◽  
...  
Keyword(s):  
Successful Treatment ◽  
Vision Loss ◽  
Visual Hallucinations ◽  
Charles Bonnet Syndrome
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