微小扫视性眼阵挛:振动幻视及发作性视物模糊的特发性病因

Microsaccadic opsoclonus: An idiopathic cause of oscillopsia and episodic blurred vision

To describe the clinical presentation and results of threedimensional video-o culography of a patient with idiopathic microsaccadic opsoclonus. Observational case report. Neuroophthalmologic examination and video-oculographic recording o f horizontal, vertical, and torsional eye movements. A 67-year-old man with in termittent blurred vision and oscillopsia, which persisted with monocular occlus ion, over a five year period was found to have high frequency, small amplitude b ack-to-back multivectorial saccadic movements which were visible with slit lam p 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. Microsacca dic opsoclonus is an idiopathic disorder that presents with oscillopsia and inte rmittent blurred vision. The diagnosis can be confirmed with three-dimensional eye movement recordings.