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*** and validation of a screening questionnaire for the Charles Bonnet syndrome

Annals of Eye Science 2018年第1期 500-500页

作者： Sylvie Cantin Josée Duquette François Dutrisac Lise Ponton Marie Courchesne Roger Dufour Walter de Abreu Cybis kassandre montisci Walter Wittich Marie-Chantal Wanet-Defalque Institut Nazareth et Louis-Braille du CISSS de la Montérégie-Centre LongueuilQCCanada Centre de recherche interdisciplinaire en réadaptation du Montréal Métropolitain QCCanada École d’optométrie Universitéde MontréalÉcole d’optométrieMontréalQCCanada

Background:The purpose of this study is to develop a screening questionnaire for the Charles Bonnet syndrome(CBS)that is valid,particularly in terms of specificity and sensitivity,and that allows to examine certain dimensions of these hallucinatory manifestations,to better assess the needs of people who live with the ***:Interviews with clients of the Institut Nazareth et Louis-Braille who experienced visual hallucinations,supported by scientific literature and expert experience,guided the development of the *** content was first validated by six experts who assessed the questions developed,organized in seven subscales:(I)unusual perceptions;(II)contact with reality;(III)discriminatory screening;(IV)adaptation strategies;(V)psychological impact;(VI)description of the context of occurrence and(VII)*** a second step,a clinical study involving 76 people with visual impairment made it possible to determine the sensitivity and specificity of the instrument according to a criterion validity methodology,namely the clinical impression of a psychologist and/or an optometrist specialized in visual impairment,based on specific examinations and clinical *** who appeared to have a CBS following the scouting done by subscale 1(Unusual Perceptions)completed the rest of the ***:(I)The analyzes revealed a sensitivity of 1.00 and a specificity that varies from of 0.42 to 0.77 for the identification of CBS with the“Unusual Perceptions”subscale;(II)the administration of the questionnaire to the 76 study participants revealed that the wording of some questions needs to be improved;(III)the responses to the other 6 subscales of the questionnaire given by the 21 participants with SCB,show among others that most have simple rather than complex hallucinations and that these occur daily for 50%of *** do not negatively affect their mood,although they are experienced as disturbing by half of the participants with

关键词： Charles Bonnet syndrome(CBS) questionnaire screening

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