Wall M, Sadun A A
Arch Ophthalmol. 1986 Apr;104(4):520-3. doi: 10.1001/archopht.1986.01050160076015.
The Amsler grid is a commonly used test for evaluation of the 10 degrees of visual field surrounding fixation. The Amsler grid is a suprathreshold stimulus and thus may not detect relative scotomas. Therefore, we had ten patients with optic neuropathies view the grid through cross-polarizing filters that created low luminance conditions in which the grid was barely perceptible. The patients were also surveyed with a 2-m tangent screen protocol and threshold automated perimetry. The threshold Amsler grid technique increased both the number of defects found and the total area of these defects by approximately a factor of 5. Two thirds of the defects found were confirmed by one of the other screening techniques. Threshold Amsler grid testing is a rapid, inexpensive, and sensitive technique for the evaluation of the central 10 degrees of the visual field.
阿姆斯勒方格表是一种常用的检测方法，用于评估注视点周围10度的视野。阿姆斯勒方格表是一种超阈值刺激，因此可能无法检测出相对暗点。因此，我们让10名患有视神经病变的患者通过交叉偏振滤光片观察方格表，这种滤光片会营造出低亮度条件，在此条件下方格表几乎难以察觉。这些患者还接受了2米正切屏检查方案和阈值自动视野计检查。阈值阿姆斯勒方格表技术发现的缺陷数量及其总面积增加了约5倍。发现的缺陷中有三分之二通过其他筛查技术之一得到了证实。阈值阿姆斯勒方格表检测是一种快速、廉价且灵敏的技术，用于评估中央10度视野。
