Superior oblique myokymia (SOM)
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Superior oblique myokymia (SOM). This is a monocular eye movement disorder. Fully referenced neurology checklist.
Pathology
- This is a monocular eye movement disorder
- It is caused by rapid torsional contractions of the superior oblique muscle
Causes
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Clinical features
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Differential diagnosis
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Medical treatment
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Surgical treatment
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References
- Kattah JC, FitzGibbon EJ. Superior oblique myokymia. Curr Neurol Neurosci Rep 2003; 3:395-400.
- Morrow MJ, Sharpe JA, Ranalli PJ. Superior oblique myokymia associated with a posterior fossa tumor: oculographic correlation with an idiopathic case. Neurology 1990; 40:367-370.
- Donaldson L, van Adel B, Rodriguez AR. Superior oblique myokymia presumed due to large posterior fossa arteriovenous malformation. Can J Neurol Sci 2020; 47:824-825.
- Yousry I, Dieterich M, Naidich TP, Schmid UD, Yousry TA. Superior oblique myokymia: magnetic resonance imaging support for the neurovascular compression hypothesis. Ann Neurol 2002; 51:361-368.
- Geis TC, Newman NJ, Dawson RC. Superior oblique myokymia associated with a dural arteriovenous fistula. J Neuroophthalmol 1996; 16:41-43.
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