平滑追視物體測試時眼球與光點目標物移動速度比值之信度

Reliability of Ratio between Eye Velocity and Target Velocity during Smooth Pursuit

李若屏(Jo-Ping Lee) ； 林怡良(Yi-Liang Lin) ； 洪秀娟(Shu-Jan Hong) ； 王淑芬(Shwu-Fen Wang)

《物理治療》 29卷4期 (2004/08) Pp. 248-253

摘要

Back ground and purposes: The velocity of smooth pursuit eye movement during neck pre-rotated position has been used to differential diagnosis the patients with cervicogenic vertigo due to traumatic neck injury. The aim of this investigation is to examine the test- retest reliability of the smooth pursuit eye movements during different head position. Methods: Ten asymptomatic young college students participated in this study (aged 20-30, female, right handed) to receive tests and were retested in one week. The horizontal smooth pursuit tests included eye movements in four conditions: in right (HRN) or left (HLN) visual field at neutral head position or at right (HRR) or left (HLL) pre-rotated head position. The vertical smooth pursuit tests included vertical smooth pursuit in three conditions: at neutral head position (VN), at right (VR) or left (VL) pre-rotated head position. The ratio of the velocity of eye movement and the reliability in these seven conditions were examined to test their reliabilities by using non-parametric Wilcoxon test. Results: The ratios of the eye velocity and target velocity during horizontal smooth pursuit were in the range of 0.84-0.99. During vertical smooth pursuit, the ratios of eye movement and target movement were in the range of 1.10-1.47. The test-retest velocity ratio of each smooth pursuit test was not significant different (p＞0.05), except during downward eye movement in VN condition (p=0.028). Conclusions: The majority of the smooth pursuit test in the asymptomatic young subjects were reliable. However, further control of the motion of eye lid during vertical movement is needed to eliminate the measurement error. (FJPT 2004;29(4):248-253)

關鍵字

平滑追視 ； 眼球速度 ； 信度

並列摘要

Back ground and purposes: The velocity of smooth pursuit eye movement during neck pre-rotated position has been used to differential diagnosis the patients with cervicogenic vertigo due to traumatic neck injury. The aim of this investigation is to examine the test- retest reliability of the smooth pursuit eye movements during different head position. Methods: Ten asymptomatic young college students participated in this study (aged 20-30, female, right handed) to receive tests and were retested in one week. The horizontal smooth pursuit tests included eye movements in four conditions: in right (HRN) or left (HLN) visual field at neutral head position or at right (HRR) or left (HLL) pre-rotated head position. The vertical smooth pursuit tests included vertical smooth pursuit in three conditions: at neutral head position (VN), at right (VR) or left (VL) pre-rotated head position. The ratio of the velocity of eye movement and the reliability in these seven conditions were examined to test their reliabilities by using non-parametric Wilcoxon test. Results: The ratios of the eye velocity and target velocity during horizontal smooth pursuit were in the range of 0.84-0.99. During vertical smooth pursuit, the ratios of eye movement and target movement were in the range of 1.10-1.47. The test-retest velocity ratio of each smooth pursuit test was not significant different (p＞0.05), except during downward eye movement in VN condition (p=0.028). Conclusions: The majority of the smooth pursuit test in the asymptomatic young subjects were reliable. However, further control of the motion of eye lid during vertical movement is needed to eliminate the measurement error. (FJPT 2004;29(4):248-253)

並列關鍵字

Smooth pursuit ； Reliability ； Eye movement