Read by QxMD icon Read

Charles Bonnet syndrome

Jang-Ho Park, Joon-Ho Ahn, Jun-Bum Park, Soohyun Joe
Charles Bonnet syndrome (CBS) can develop after trans-sphenoidal adenomectomy (TSA); however, the neural mechanisms remain unknown. Sensory deprivation and releasing phenomenon are both hypothetical explanations for this condition; however, there is no definite evidence that strongly supports either supposition. We report the first case of CBS after TSA without optic nerve atrophy. Postoperatively, the patient's vision seemed to be relatively well preserved, apart from the left-side hemianopsia in the right eye...
September 2016: Psychiatry Investigation
Lutfu Hanoglu, Sultan Yildiz, Burcu Polat, Sema Demirci, Ahmet Mithat Tavli, Nesrin Yilmaz, Burak Yulug
BACKGROUND: Charles Bonnet Syndrome (CBS) is a rare clinical condition which is characterized with complex hallucinations by visually impaired patients. The pathophysiology of this disorder remains largely unknown, and there is still no proven treatment for this disease. In our study, we aimed to investigate the neural activity through Electroencephalography (EEG) power and evaluate the effect of rivastigmine in combination with alpha-lipoic acid on hallucination in two CBS patients with diabetic retinopathy...
October 3, 2016: Current Clinical Pharmacology
Diana Molinares Mejia, Gemayaret Alvarez-Gonzalez
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
E Santos-Bueso, J Porta-Etessam
No abstract text is available yet for this article.
August 16, 2016: Archivos de la Sociedad Española de Oftalmología
Linda Pang
Charles Bonnet Syndrome is a condition where visual hallucinations occur as a result of damage along the visual pathway. Patients with Charles Bonnet Syndrome maintain partial or full insight that the hallucinations are not real, absence of psychological conditions, and absence of hallucinations affecting other sensory modalities, while maintaining intact intellectual functioning. Charles Bonnet Syndrome has been well documented in neurologic, geriatric medicine, and psychiatric literature, but there is lack of information in optometric and ophthalmologic literature...
August 16, 2016: Optometry and Vision Science: Official Publication of the American Academy of Optometry
Michelle E Wilson, Renelle Pointdujour-Lim, Sara Lally, Carol L Shields, Michael P Rabinowitz
A 69-year-old male experienced monocular formed visual hallucinations after occlusion of the right eye following resection of eyelid basal cell carcinoma and reconstruction with a Hughes procedure (tarsoconjunctival flap). His symptoms included recurrent, well-defined, organized, complex, formed images of small children playing in the snow. These visual phenomena occurred only in the occluded eye, began several hours after surgery, and recurred intermittently several times daily for 4 days, lasting several minutes with each occurrence...
October 2016: Orbit
Crystel Bonnet, Zied Riahi, Sandra Chantot-Bastaraud, Luce Smagghe, Mélanie Letexier, Charles Marcaillou, Gaëlle M Lefèvre, Jean-Pierre Hardelin, Aziz El-Amraoui, Amrit Singh-Estivalet, Saddek Mohand-Saïd, Susanne Kohl, Anne Kurtenbach, Ieva Sliesoraityte, Ditta Zobor, Souad Gherbi, Francesco Testa, Francesca Simonelli, Sandro Banfi, Ana Fakin, Damjan Glavač, Martina Jarc-Vidmar, Andrej Zupan, Saba Battelino, Loreto Martorell Sampol, Maria Antonia Claveria, Jaume Catala Mora, Shzeena Dad, Lisbeth B Møller, Jesus Rodriguez Jorge, Marko Hawlina, Alberto Auricchio, José-Alain Sahel, Sandrine Marlin, Eberhart Zrenner, Isabelle Audo, Christine Petit
Usher syndrome (USH), the most prevalent cause of hereditary deafness-blindness, is an autosomal recessive and genetically heterogeneous disorder. Three clinical subtypes (USH1-3) are distinguishable based on the severity of the sensorineural hearing impairment, the presence or absence of vestibular dysfunction, and the age of onset of the retinitis pigmentosa. A total of 10 causal genes, 6 for USH1, 3 for USH2, and 1 for USH3, and an USH2 modifier gene, have been identified. A robust molecular diagnosis is required not only to improve genetic counseling, but also to advance gene therapy in USH patients...
July 27, 2016: European Journal of Human Genetics: EJHG
Rolf Sander, Viviana Guerrero, Montserrat Perelló, Paul Ivanov
No abstract text is available yet for this article.
July 14, 2016: Revista Española de Geriatría y Gerontología
Heike M Elflein, M Rudy, K Lorenz, K A Ponto, A Scheurich, S Pitz
PURPOSE: To investigate whether the experience of visual hallucinations, namely Charles Bonnet's syndrome, in psychologically healthy people is a phenomenon solely of elderly, visually impaired people. METHODS: In a prospective controlled study, four groups of subjects (total 324) were formed: age ≤40 years, no visual impairment; age ≤40 years, visually impaired; age >40 years, no visual impairment; age >40 years, visually impaired. Visual impairment was defined as best-corrected visual acuity ≤0...
August 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
(no author information available yet)
No abstract text is available yet for this article.
June 2016: Annals of Intensive Care
Serhad Nalcaci, Orhan İlim, Zafer Oztas, Cezmi Akkin, Ahmet Acarer, Filiz Afrashi, Jale Mentes
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...
2016: Ophthalmologica. Journal International D'ophtalmologie
Halil Ozcan, Atakan Yucel, Orhan Ates
Sensory visual pathologies, accompanying simple or complex visual hallucinations that occur in visually-impaired individuals due to ophthalmologic or brain pathologies related to visual pathways in patients without mental disorders, are defined as Charles Bonnet syndrome. Between 10% and 60% of the patients having age-related eye diseases involving retina, cornea and the lens, commonly with macular degeneration experience complex visual hallucinations depending on the severity of visual problems. The neurophysiology of the visual hallucinations in Charles Bonnet Syndrome is not clearly known, and they may differ in content and severity over time...
February 2016: Eurasian Journal of Medicine
Bradley Ng, Daniel Smith
No abstract text is available yet for this article.
June 2004: Acta Neuropsychiatrica
Keith D Gordon
PURPOSE: To evaluate the prevalence of visual hallucinations (Charles Bonnet syndrome) in a national population undergoing vision rehabilitation. STUDY DESIGN: Cross-sectional survey. PARTICIPANTS: Participants were 2565 new clients older than 40 years attending a Canadian National Institute for the Blind (CNIB) vision rehabilitation clinic. METHODS: Participants were asked the following question: "Many people who come to CNIB tell us that they see things they know are not there...
February 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
Gaurav Singh Gulsin, Swetha Gali, Prashanth Patel, Pankaj Gupta
A 74-year-old man reported experiencing hallucinations of a dog standing on his right side, following a recent episode of infective endocarditis. There was no history of reduced conscious level, psychosis or substance misuse. Neurological examination revealed an isolated right inferior quadrantopia, and the hallucinations were visible only in the area of the visual defect. A computed tomography scan confirmed a left occipital lobe infarct, congruent with the clinical signs. The infarct was deemed to be have originated from a septic embolus of his infected aortic valve and he was diagnosed with Charles Bonnet's syndrome (CBS)...
January 2016: Oxford Medical Case Reports
Kateri Levesque, Nathalie Morel, Alice Maltret, Gabriel Baron, Agathe Masseau, Pauline Orquevaux, Jean-Charles Piette, Francois Barriere, Jérome Le Bidois, Laurent Fermont, Olivier Fain, Arnaud Theulin, Francois Sassolas, Philippe Pezard, Zahir Amoura, Gaëlle Guettrot-Imbert, Delphine Le Mercier, Sophie Georgin-Lavialle, Christophe Deligny, Eric Hachulla, Luc Mouthon, Philippe Ravaud, Elisabeth Villain, Damien Bonnet, Nathalie Costedoat-Chalumeau
BACKGROUND: Cardiac neonatal lupus syndrome is due to anti-SSA or SSB antibodies and mainly includes congenital heart block (CHB) and dilated cardiomyopathy (DCM). Its optimal management is still debated. We report a large series of autoimmune high degree CHB. METHODS: Inclusion criteria in this retrospective study were fetuses or neonates with high-degree CHB associated with maternal anti-SSA/SSB antibodies. RESULTS: 214 CHB were included: 202 detected in utero at a median term of 23 weeks' gestation (WG) [range 16 to 39 WG] and 12 neonatal cases diagnosed at a median age of 0 days [range birth to 8 days]...
December 2015: Autoimmunity Reviews
Gary C Brown, Melissa M Brown, David H Fischer
PURPOSE: To assess the character and cause of photopsias in vitreoretinal patients. DESIGN: Cross-sectional study. PARTICIPANTS: A total of 169 consecutive patients (217 eyes) with vitreoretinal disease presenting with a history of photopsias. METHODS: A total of 217 eyes with photopsias in 169 patients were evaluated. Photopsia assessment included (1) laterality (unilateral, bilateral but not simultaneous, bilateral, and simultaneous); (2) morphology (flash, zig-zag, strobe, scintillating scotoma, twinkling, other); (3) color (white, silver, yellow, combination, other); (4) location (temporal, central, other); (5) duration (quick, prolonged, constant, other); (6) frequency; (7) diurnal appearance (day, night, both); (8) stimuli (turning head or eyes, hypoglycemia, hyperglycemia, other); and (9) associated systemic or ocular signs and symptoms (headache, numbness, weakness, vertigo, syncope, diplopia, hypotension, floaters, other)...
October 2015: Ophthalmology
Emre Kumral, Arzu Uluakay, İlknur Dönmez
BACKGROUND: Charles Bonnet syndrome (CBS) is an uncommon disorder characterized by complex and recurrent visual hallucinations in patients with visual pathway pathologic defects. OBJECTIVE: To describe a patient who experienced complex visual hallucinations following infarction in the right occipital lobe and epileptic seizure who was diagnosed as having CBS. PATIENT: A 65-year-old man presented acute ischemic stroke caused by artery to artery embolism involving the right occipital lobe...
July 2015: Neurologist
I Forgnone, A Siguero Angui
No abstract text is available yet for this article.
April 2016: Semergen
Fleur O'Hare, Sharon A Bentley, Zhichao Wu, Robyn H Guymer, Chi D Luu, Lauren N Ayton
No abstract text is available yet for this article.
September 2015: Ophthalmology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"