S10 Copyright 2018 The Korean Society of Neuro-Ophthalmology http://neuro-ophthalmology.co.kr
Smooth Pursuit
Eek-Sung Lee
Department of Neurology, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
Smooth pursuit eye movements stabilize the image of an object on the fovea during slow movements of the object. Smooth pursuit can be mea- sured by measuring its onset and maintenance. Step-ramp stimuli can be used to measure the onset of smooth pursuit, and during maintenance of smooth pursuit, gain is the most useful measurement. The junction of the middle temporal gyrus or inferior temporal sulcus with the occipital lobe (area V5, corresponding to area MT in monkey) and frontal eye field
are core structure for smooth pursuit. Additional structures such as pon- tine nuclei (dorsolateral pontine nuclei, DLPN; nucleus reticularis teg- menti pontis, NRTP), and cerebellum (especially flocculus, parafluccu- lus, dorsal vermis and fastigial nucleus) are also important role. Bilateral- ly impaired pursuit is a non-specific finding of many diffuse neurologic disorders, while unilateral impairement may suggest unilateral cerebral, brainstem, or cerebellar lesion.
ISSN: 2234-0971 대한안신경의학회지: 제8권 Supplement 1
Clin Neuroophthalmol 8(Suppl 1):S10-10, May 2018
