THE ANALYSIS OF RELATED PARAMETERS OF SACCADE, SMOOTH PURSUIT AND OPTOKINETIC NYSTAGMUS IN HEALTHY SUBJECTS
- VernacularTitle:正常人眼球快速扫视、平稳跟踪及视动性眼震有关参数的分析
- Author:
Yisheng ZHANG
;
Yi CUI
- Publication Type:Journal Article
- Keywords:
electrooculography saccades nystagmus smooth pursuit normal values
- From:
Academic Journal of Second Military Medical University
1985;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
The normal value of parameters of saccade, smooth pursuit and optokinetic nystagmus has been detected by recording the electro-oculograph in 29 healthy subjects.The results are as follows: 1.The reaction time of saccade is 259.04? 74.19,the mean velocity is 216.83?87.51/s in 15? target amplitude.No statistical significance has been found between sexes, but the reaction time is obviously longer in pre-puberty group.2.For smooth pursuit in 40% target velocity, gain is 0.976?0.08, phase lag is 3.95?7.69s,moothness is 0.925?1.49.No statistical significance has been found between sexes.3.In analysing the sequential process of saccade and smooth pursuit, it can't observed the tendency of decrement in latency.4.The gain of OKN in 14?/s velocity is between 0.689-0.808, the gain decreases following the increase of target velocity.The symmetry of OKN is 3.54?15.04% and there are 81.58% of OKN belonging macula type in healthy people.5.When the target velocity is in close each other,the velocity of fast phase of OKN is in close with the velocity of saccade.
