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KMID : 1036520110010010001
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Clinical Neuro-Ophthalmology
2011 Volume.1 No. 1 p.1 ~ p.9
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Basics of Eye Movement
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Park Ji-Yun
Lee Tae-Kyeong
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Abstract
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In foveate animals, the ultimate goal of all sorts of eye movements is to maintain clear vision. Eye movements are functionally classified into two categories: gaze stabilization and gaze shift. The function of vestibular, optokinetic, and visual fixation systems is to hold images of the seen world steady on the retina so as to stabilize gaze. Saccades, smooth pursuit, and vergence eye movements acquire and hold images of objects of interest on the fovea that their function is to shift gaze. These functional categorization of eye movements is useful for studying and managing eye movement disorders. For approaching eye movement disorders, it is essential to have thorough knowledge of anatomy and physiology relating ocular motor function: extraocualr muscles, ocular motor nerves, brain stem, and supranuclear structures. In this article, we review the basics of the anatomy and physiology for the eye movements from supranuclear structures to ocular motor nerves.
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KEYWORD
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Diplopia, Ocular motility disorders, Eye Movements
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Listed journal information
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