青光眼的图形视网膜电图：基于比耶鲁姆区相对振幅的评估
The pattern electroretinogram in glaucoma: an evaluation by relative amplitude from the Bjerrum area.
作者信息
Watanabe I, Iijima H, Tsukahara S
机构信息
Department of Ophthalmology, Yamanashi Medical College, Tamaho, Japan.
出版信息
Br J Ophthalmol. 1989 Feb;73(2):131-5. doi: 10.1136/bjo.73.2.131.
A new concept for evaluating the pattern electroretinogram (PERG) in glaucoma and its clinical application are described. The PERG was elicited by two different stimulus fields, namely, the whole central retinal area with a radius of 18 degrees and the paracentral ring area between the radius of 10 degrees and 18 degrees. The amplitude of the PERG for each stimulus field and the ratio of them were analysed for 30 patients with glaucoma or ocular hypertension. Among these only a small number of eyes were detected as abnormal when we evaluated the amplitude itself either with the central stimulus or the paracentral ring stimulus, whereas the ratio of the two values was below normal in some cases of advanced glaucoma. We conclude that the ratio of the paracentral to central PERG is useful for detecting glaucoma.
描述了一种评估青光眼图形视网膜电图（PERG）的新概念及其临床应用。PERG由两个不同的刺激区域诱发，即半径为18度的整个中央视网膜区域和半径为10度至18度之间的旁中央环形区域。对30例青光眼或高眼压症患者分析了每个刺激区域的PERG振幅及其比值。在这些患者中，当我们用中央刺激或旁中央环形刺激单独评估振幅时，只有少数眼睛被检测为异常，而在一些晚期青光眼病例中，两个值的比值低于正常。我们得出结论，旁中央与中央PERG的比值有助于检测青光眼。
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