青光眼患者对运动刺激的反应时间延长及其与运动阈值升高的关系。
Response time prolongation for a motion stimulus in patients with glaucoma and its relationship with elevation of the motion threshold.
作者信息
Westcott M C, Fitzke F W, Viswanathan A C, Hitchings R A
机构信息
Institute of Ophthalmology and Moorfields Eye Hospital, London, United Kingdom.
出版信息
J Glaucoma. 2000 Aug;9(4):289-95. doi: 10.1097/00061198-200008000-00002.
PURPOSE
To investigate whether response times for a motion stimulus are prolonged in glaucoma and to investigate the relationship between response time prolongation and motion threshold elevation in glaucoma.
METHOD
Motion displacement thresholds and response times were measured in 15 patients with glaucoma and 18 age-matched control subjects.
RESULTS
Mean test response times were significantly prolonged in the glaucomatous eyes than in the control eyes, with a mean delay of 200 milliseconds. After correcting for threshold elevation, response times at the motion threshold showed no significant difference between the groups.
CONCLUSIONS
Response times for motion detection are significantly prolonged in glaucoma and are accounted for by the threshold elevation in patients with glaucoma. The implications of these results are discussed in terms of the use of response time analysis to determine subject reliability.
目的
研究青光眼患者对运动刺激的反应时间是否延长，并探讨青光眼患者反应时间延长与运动阈值升高之间的关系。
方法
对15例青光眼患者和18例年龄匹配的对照者测量运动位移阈值和反应时间。
结果
青光眼患者患眼的平均测试反应时间比对照眼显著延长，平均延迟200毫秒。在校正阈值升高后，两组在运动阈值时的反应时间无显著差异。
结论
青光眼患者运动检测的反应时间显著延长，且由青光眼患者的阈值升高所致。根据反应时间分析在确定受试者可靠性方面的应用对这些结果的意义进行了讨论。
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