Balance between pattern and flicker sensitivities in the visual fields of ophthalmological patients.
Balance between pattern and flicker sensitivities in the visual fields of ophthalmological patients.
复制标题
眼科患者视野中图案和闪烁敏感性之间的平衡。
DOI：
10.1136/bjo.68.5.310
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发表时间：
1984
影响因子：
4.1
通讯作者：
D. Neima
中科院分区：
文献类型：
--
作者：
D. Regan;D. Neima
我们测量了对图案和闪烁的视觉敏感度之间的平衡，而不是对图案或闪烁的绝对敏感度。测试对象为反相调制频率为8赫兹的2周期deg-1正弦波光栅。对视野中的17个点进行了24度的偏心测试。我们检查了10名对照组，6名青光眼患者，10名高眼压患者和10名多发性硬化症患者。对照组中心视觉模式敏感度低于闪光敏感度。相反的情况发生在边缘视觉中。在许多患者的部分或全部视野中，图案敏感度和闪烁敏感度之间的平衡明显异常。在所有患者组中都有这样的例子。有些患者的闪光敏感度相对于模式是降低的。在其他国家，情况正好相反。在10例无视野损失的高眼压患者中，有8例在视野的某个时间点的模式敏感度与闪烁敏感度的比值明显异常。图案和闪烁敏感度之间的平衡对视觉病理比对图案或闪烁的绝对敏感度更敏感。我们的结论是，模式和闪烁敏感度之间的关系对视野损害可能比传统的视野检查或视力视野检查更敏感。
We measured the balance between visual sensitivities to pattern and to flicker rather than measuring absolute sensitivities to pattern or flicker. The test target was a 2-cycle deg-1 sinewave grating that was counterphase modulated at 8 Hz. Seventeen points in the visual field were tested out to eccentricities of 24 degrees. We examined 10 control subjects, 6 patients with glaucoma 10 with ocular hypertension, and 10 with multiple sclerosis. For controls pattern sensitivity was lower than flicker sensitivity in central vision. The converse held in peripheral vision. The balance between pattern sensitivity and flicker sensitivity was markedly abnormal in part or all of the visual field for many patients. There were examples in all patient groups. In some patients flicker sensitivity was depressed relative to pattern. In others the converse was true. Of 10 patients with ocular hypertension and no perimetric field loss 8 had a significantly abnormal ratio between pattern sensitivity and flicker sensitivity at some point in the visual field. The balance between pattern and flicker sensitivity was more sensitive to visual pathology than absolute sensitivity to either pattern or flicker. We conclude that the relationship between pattern and flicker sensitivity may be more sensitive to visual field damage than is conventional perimetry or visual acuity perimetry.
影响因子：
--
作者：
QUIGLEY, HA;ADDICKS, EM;MAUMENEE, AE
通讯作者：
MAUMENEE, AE
影响因子：
--
作者：
QUIGLEY, HA;ADDICKS, EM;GREEN, WR
通讯作者：
GREEN, WR
影响因子：
--
作者：
C. A. Burbeck
通讯作者：
C. A. Burbeck