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Inicio Archivos de la Sociedad Española de Oftalmología (English Edition) Paradoxical cessation in a case of Charles Bonnet syndrome
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Vol. 89. Issue 10.
Pages 418-420 (October 2014)
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Vol. 89. Issue 10.
Pages 418-420 (October 2014)
Short communication
Paradoxical cessation in a case of Charles Bonnet syndrome
Cese paradójico de un caso de síndrome de Charles Bonnet
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683
E. Santos-Bueso
Corresponding author
esbueso@hotmail.com

Corresponding author.
, M. Serrador-García, F. Sáenz-Francés, C.D. Méndez-Hernández, J.M. Martínez-de-la-Casa, J. García-Feijoo, J. García-Sánchez
Unidad de Neurooftalmología, Servicio de Oftalmología, Hospital Clínico San Carlos, Madrid, Spain
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Abstract
Case report

A 78-year-old male patient diagnosed with Charles Bonnet syndrome (CBS) showing secondary visual deficit toward end-stage glaucoma. He progressed to amaurosis, with an abrupt disappearance of hallucinations in parallel to the loss of residual vision.

Discussion

The paradoxical cessation of CBS occurs when the patient loses residual vision and progresses to amaurosis. The lack of stimulation, both in the corresponding retina and the cortex, leads to the disappearance of hallucinations because the deafferented and hyper-excited neurons lose the necessary stimulus that triggers CBS.

Keywords:
Glaucoma
Hallucinations
Charles Bonnet
Paradoxical cessation
Low vision
Resumen
Caso clínico

Paciente varón de 78 años diagnosticado de síndrome de Charles Bonnet (SCB) por déficit visual secundario a glaucoma terminal. Evolucionó a amaurosis, presentando desaparición brusca de las alucinaciones de forma paralela a la pérdida del resto visual.

Discusión

El cese paradójico del SCB se produce cuando el paciente pierde el resto visual, evolucionando a amaurosis. La falta de estimulación en la retina y el córtex correspondiente hacen desaparecer las alucinaciones debido a que las neuronas desaferentadas e hiperexcitadas pierden el estímulo que desencadena el SCB.

Palabras clave:
Glaucoma
Alucinaciones
Charles Bonnet
Cese paradójico
Baja visión

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