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The effect of chronic one-eye patching on ocular myoclonus
1Department of Neurology, Soroka University Medical Center, Beer-Sheva, Israel.
Journal of Clinical Neuro-Ophthalmology
|September 1, 1991
Summary
Chronic eye patching may help manage vertical pendular nystagmus following brain stem hemorrhage. This intervention reduced nystagmus in the fixating eye, suggesting a beneficial effect for patients with ocular motor disorders.
Area of Science:
- Neuro-ophthalmology
- Neurology
Background:
- Brain stem hemorrhage, often caused by eclampsia, can lead to severe neurological deficits.
- Ocular myoclonus is an involuntary, rhythmic contraction of ocular muscles, impacting vision.
Observation:
- A 34-year-old patient developed ocular myoclonus after a massive brain stem hemorrhage.
- The patient exhibited vertical pendular nystagmus in the right eye and horizontal pendular nystagmus in the left eye when both were fixating.
- Chronic patching of the left eye led to the disappearance of vertical nystagmus in the fixating right eye and induced esotropia in the covered eye.
Findings:
- Patching one eye modulated the vertical pendular nystagmus in the fixating eye.
- The effect of patching appeared specific to the fixating eye, with the covered eye showing a different deviation (esotropia).
Implications:
- Chronic unilateral eye patching may be a viable non-invasive strategy for managing vertical pendular nystagmus.
- Further research is warranted to understand the mechanisms behind this observed modulation and its long-term efficacy.