Characteristics of frequency-of-seeing curves for a motion stimulus in glaucoma eyes, glaucoma suspect eyes, and normal eyes

被引:12
|
作者
Westcott, MC
Fitzke, FW
Crabb, DP
Hitchings, RA
机构
[1] Inst Ophthalmol, Dept Visual Sci, London EC1 9EL, England
[2] Moorfields Eye Hosp, London, England
基金
英国医学研究理事会;
关键词
glaucoma; motion perception; frequency-of-seeing curves; psychometric-function; perimetry;
D O I
10.1016/S0042-6989(98)00187-4
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
This study compared frequency-of-seeing curves for a line displacement test in glaucoma patients and normals. Probit analysis of the frequency-of-seeing curves provided the motion thresholds and the slopes of the frequency-of-seeing curves, represented by the interquartile range. The thresholds and interquartile ranges were significantly elevated in the glaucoma eyes and suspect eyes, compared to controls. A logistic regression model incorporating both the interquartile range and threshold significantly improved the sensitivity of the motion test in the suspects. Abnormal shallowing of the slope of the motion frequency-of-seeing curve may represent one of the earliest changes in glaucoma. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:631 / 639
页数:9
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