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The Heimann-Bielschowsky phenomenon after optic neuritis
E Anagnostou1, D Karathanasis1, M E Evangelopoulos1
1Department of Neurology, University of Athens, Eginition Hospital, Athens, Greece.
A rare Heimann-Bielschowsky phenomenon (HBP) caused spontaneous vertical eye movements in a multiple sclerosis patient. This neuro-ophthalmologic finding, while unusual, is benign and linked to optic nerve and brainstem network disruptions.
Area of Science:
- Neuroscience
- Ophthalmology
- Neurology
Background:
- Multiple sclerosis (MS) can cause various neuro-ophthalmologic manifestations.
- Optic neuritis is a common MS complication, sometimes leading to incomplete recovery.
- The Heimann-Bielschowsky phenomenon (HBP) is a rare form of dissociated nystagmus.
Observation:
- A 32-year-old woman with relapsing-remitting MS and optic neuritis presented with a unique vertical nystagmus.
- This spontaneous, pendular, vertical eye movement was diagnosed as the Heimann-Bielschowsky phenomenon (HBP).
Findings:
- The Heimann-Bielschowsky phenomenon (HBP) in this case likely results from a dual abnormality mechanism.
- This mechanism involves asymmetric conduction delay in the optic nerve and disrupted brainstem gaze pathways.
Implications:
- Recognizing this rare neuro-ophthalmologic syndrome is crucial for clinicians.
- The Heimann-Bielschowsky phenomenon (HBP) associated with MS is considered benign, aiding in patient management.
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