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  • Title: Microsaccadic opsoclonus: an idiopathic cause of oscillopsia and episodic blurred vision.
    Author: Foroozan R, Brodsky MC.
    Journal: Am J Ophthalmol; 2004 Dec; 138(6):1053-4. PubMed ID: 15629305.
    Abstract:
    PURPOSE: To describe the clinical presentation and results of three-dimensional video-oculography of a patient with idiopathic microsaccadic opsoclonus. DESIGN: Observational case report. METHODS: Neuro-ophthalmologic examination and video-oculographic recording of horizontal, vertical, and torsional eye movements. RESULTS: A 67-year-old man with intermittent blurred vision and oscillopsia, which persisted with monocular occlusion, over a five year period was found to have high frequency, small amplitude back-to-back multivectorial saccadic movements which were visible with slit lamp biomicroscopy and direct ophthalmoscopy. Video-oculography showed a 20 Hz, 0.2 to 1 degree pattern of horizontal, vertical, and torsional microsaccades. This microsaccadic disorder has persisted for five years with no etiology. CONCLUSIONS: Microsaccadic opsoclonus is an idiopathic disorder that presents with oscillopsia and intermittent blurred vision. The diagnosis can be confirmed with three-dimensional eye movement recordings.
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