Rapid assessment of visual function: an electronic sweep technique for the pattern visual evoked potential.
Rapid assessment of visual function: an electronic sweep technique for the pattern visual evoked potential.
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DOI：
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发表时间：
1979-07
影响因子：
4.4
通讯作者：
C. Tyler;P. Apkarian;D. M. Levi;K. Nakayama
中科院分区：
文献类型：
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作者：
C. Tyler;P. Apkarian;D. M. Levi;K. Nakayama
我们开发了一种电子空间频率扫描技术，用于视觉敏锐度和图形视觉的电生理评估。该技术允许在短短10秒内对全范围空间频率的VEP进行准确可靠的测量。由于测量如此迅速，该技术在视觉功能评估方面提出了几项新的改进。线性地扫描空间频率并将VEP空间调谐函数的高频区域外推到零电压允许与敏锐度的心理物理估计高度相关的敏锐度的估计。该程序的变体适用于再骨折错误的评估，确定双眼和双眼相互作用的视觉功能的平等性，以及治疗条件的连续评估。
We have developed an electronic spatial frequency sweep technique for electrophysiological assessment of visual acuity and pattern vision. The technique allows an accurate and reliable measurement of VEPs to a full range of spatial frequencies in just 10 sec. Because the measurements are so rapid, the technique suggests several new improvements in the assessment of visual function. Sweeping spatial frequency linearly and extrapolating the high-frequency region of the VEP spatial-tuning function to zero voltage allows an estimate of acuity which correlates highly with psychophysical estimates of acuity. Variants of the procedure are appropriate for the assessment of refracture error, determination of equality of visual function for the two eyes and of binocular interactions, and for sequential assessment of therapeutic conditions.