Gu X, Wu L, Wu D Z
Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou, China.
Yan Ke Xue Bao. 1990 Dec;6(3-4):60-5.
Full-field optokinetic nystagmus (OKN) at constant speed of 40 degrees/s and 60 degrees/s, vestibular ocular reflex (VOR) (sinusoidal 0.2Hz, 60 degrees/s peak velocity) with different background (light and dark) and VOR-fix were observed in 72 normal subjects (144 normal eyes). The gain, FCV and DP of OKN, VVOR, VOR were also analysed. The gain of OKN is reduced accompanied with stimulation increasing, while the FCV is increased. The gain of VVOR is 1.08 +/- 0.09(mean +/- SD), while the gain of VOR is 0.64 +/- 0.09. The FCV of VOR is much reduced than that of VVOR. The FCV in the groups under 30 years of age are much faster than the groups above 30 years of age. The VOR-fix gain is 0.05 +/- 0.04. The DP of OKN, VVOR, and VOR are 0.05 +/- 0.04. The results showed an co-operation between visual and vestibular systems and the results also suggested that the series methods of visual-vestibular interaction (OKN, VVOR, VOR, VOR-fix) might be useful in eye movement examination.
对72名正常受试者（144只正常眼睛）进行了观察，包括在40度/秒和60度/秒的恒定速度下的全视野视动性眼震（OKN）、在不同背景（明和暗）下的前庭眼反射（VOR）（正弦波0.2Hz，峰值速度60度/秒）以及VOR-注视。还分析了OKN、视前庭眼反射（VVOR）、VOR的增益、快相速度（FCV）和相位差（DP）。OKN的增益随着刺激增加而降低，而FCV增加。VVOR的增益为1.08±0.09（平均值±标准差），而VOR的增益为0.64±0.09。VOR的FCV比VVOR的FCV大幅降低。30岁以下组的FCV比30岁以上组快得多。VOR-注视增益为0.05±0.04。OKN、VVOR和VOR的DP为0.05±0.04。结果显示了视觉和前庭系统之间的协同作用，结果还表明视觉-前庭相互作用的系列方法（OKN、VVOR、VOR、VOR-注视）可能在眼动检查中有用。
