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Related Experiment Video

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Using Eye-tracking to Assess the Relative Importance of Visual and Vestibular Input to Subcortical Motion Processing in the Roll Plane

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Visual involvement in corticobasal syndrome.

Rithwick Rajagopal¹, Randall Bateman, Gregory P Van Stavern

¹Department of Ophthalmology and Visual Sciences, Washington University, Saint Louis, Missouri 63110, USA.

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society

|September 20, 2011

Summary

Corticobasal syndrome (CBS) can cause severe visual problems like oculomotor apraxia and simultagnosia. This case highlights how visual dysfunction can be a primary, debilitating symptom in CBS patients.

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Area of Science:

Neuroscience
Ophthalmology

Background:

Corticobasal syndrome (CBS) is a clinical manifestation of corticobasal degeneration (CBD).
CBD is a rare neurodegenerative disorder affecting both cerebral and basal ganglia regions.
Visual disturbances are uncommon but can be a primary, debilitating symptom in CBS.

Observation:

A 60-year-old woman with a history of CBS presented with progressive visual impairment.
Her primary symptoms included severe oculomotor apraxia, optic ataxia, and pronounced simultagnosia.
These visual deficits significantly impacted her ability to process visuospatial information.

Findings:

The patient's visual impairment was predominantly due to oculomotor apraxia and simultagnosia.
Cognitive impairment associated with CBS can lead to difficulties in visuospatial processing.
Review of literature indicates visual dysfunction is a recognized, though infrequent, feature of CBS.

Implications:

Recognizing visual dysfunction as a primary symptom in CBS is crucial for diagnosis and management.
Understanding the spectrum of visual deficits in CBS can improve patient care.
Further research into the mechanisms of visual impairment in neurodegenerative diseases is warranted.