Textorius O, Nilsson S E, Skoog K O
Acta Ophthalmol (Copenh). 1978;56(4):648-64. doi: 10.1111/j.1755-3768.1978.tb01377.x.
The main positive component of the c-wave of the ERG is generated by the pigment epithelium-receptor complex, which is supplied from the choroidal circulation. Occlusion of the central retinal artery (OCRA) causes serious morphological damage only to the inner retina. An effect on the c-wave is therefore not primarily to be expected. In this study on five Cynomolgus monkeys with unilateral, laser-induced OCRA the c-wave was decreased, slightly in the early stage and markedly in the late stage. A hypothetical explanation of the reduced c-wave amplitude, involving changes in potassium ion concentration, is discussed. The conflicting results in other reports may be explained by uncontrolled influence of slow c-wave amplitude oscillations, by differences between acute and late stages, and by possible surgical damage to the choroidal circulation in some cases.
视网膜电图（ERG）的c波主要正向成分由色素上皮-感受器复合体产生，该复合体由脉络膜循环供血。视网膜中央动脉阻塞（OCRA）仅会对视网膜内层造成严重的形态学损伤。因此，预计其对c波不会产生主要影响。在这项针对五只单侧激光诱导性OCRA的食蟹猴的研究中，c波降低，早期降低程度较轻，晚期降低明显。本文讨论了一种关于c波振幅降低的假说性解释，该解释涉及钾离子浓度的变化。其他报告中相互矛盾的结果可能是由于c波振幅缓慢振荡的不受控制影响、急性和晚期之间的差异以及某些情况下脉络膜循环可能受到的手术损伤所致。
