👀 Subtle spontaneous nystagmus? The head-shaking test is an essential clinical tool. This patient presented with mild vestibular symptoms, and spontaneous nystagmus was barely visible on initial inspection. After performing the head-shaking test (20 cycles at approximately 2 Hz), we were able to accentuate the underlying nystagmus, making it significantly easier to identify the pattern and laterality. 🔍 Why does this work? Head shaking fatigues the velocity storage mechanism and unmasks asymme
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👀 Subtle spontaneous nystagmus? The head-shaking test is an essential clinical tool. This patient presented with mild vestibular symptoms, and spontaneous nystagmus was barely visible on initial inspection. After performing the head-shaking test (20 cycles at approximately 2 Hz), we were able to accentuate the underlying nystagmus, making it significantly easier to identify the pattern and laterality. 🔍 Why does this work? Head shaking fatigues the velocity storage mechanism and unmasks asymme
341 views6 months ago
FacebookAll In Your Head
Voluntary Nystagmus By: Jeffrey Colburn, MD This interesting video clip, shared with permission, shows voluntary nystagmus. Nystagmus, the medical term for abnormal eye shaking, can sometimes be a sign of a serious medical or neurologic problem. Sometimes it is can be present from infancy due to some factor interfering with the calibration of the brain's ability to hold the eyes steady and on target. In that case it is not dangerous but can limit vision. Nystagmus is generally involuntary, meani
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Voluntary Nystagmus By: Jeffrey Colburn, MD This interesting video clip, shared with permission, shows voluntary nystagmus. Nystagmus, the medical term for abnormal eye shaking, can sometimes be a sign of a serious medical or neurologic problem. Sometimes it is can be present from infancy due to some factor interfering with the calibration of the brain's ability to hold the eyes steady and on target. In that case it is not dangerous but can limit vision. Nystagmus is generally involuntary, meani
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