一种基于虚拟成像技术的视眼动反射检查方法

Ocular motility test based on virtual imaging stimulation

目的分析利用虚拟成象技术进行视眼动反射检查的信度和效度,探索其在视眼动反射检查中的可行性。方法 22名被试者分别随机先后用虚拟成像方法和传统检查方法(投影模式,SYSTEM 2000型前庭功能检查系统,美国MMT公司)进行3项视眼动反射检测(平稳跟踪检测、扫视检测、视动性眼震检测),以观察两种检查方法结果之间的一致性,即该方法的效度;此外,每名受试者用虚拟成像方法随机重复进行三次测试以检验各次检查结果的一致性,即该方法的信度。结果虚拟成像方法和传统方法检查结果之间无显著性差异,虚拟成像方法三次检查结果之间无显著差异,具有较好的一致性。结论虚拟成象技术应用于视眼动反射检查具有较好的信度和效度,是可行的。

Objective To investigate the test-retest reliability and validity of virtual imaging（Ⅵ） as visual stimulation in ocular motility（OM） test.Methods Twenty two volunteers received three sessions of virtual imaging ocular motility test and one classical OM test induced by light,with an interval of 48 hours between each test.The OM tests included saccade,eye-tracking and optokinetic nystagmus tests.The test-retest reliability of virtual imaging ocular motility test was analyzed by comparison among the three virtual imaging ocular motility tests,and its validity was analyzed by comparison to classical OM test.Results There was no significant difference between VI and classical OM tests,or among the three sessions of virtual imaging ocular motility tests.Conclusion Virtual imaging ocular motility test is reliable and valid.