Anderson D R, Knighton R W, Feuer W J
Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami School of Medicine, Florida 33101.
Am J Ophthalmol. 1989 Apr 15;107(4):398-402. doi: 10.1016/0002-9394(89)90663-6.
We performed several visual function tests in 17 eyes (ten patients) before and after argon laser iridotomy in an effort to detect diffuse photochemical damage to photoreceptors caused by exposure to the intense, blue-green light that is transmitted into the posterior segment as the iridotomy is created and enlarged. No change was detected in static threshold sensitivity in the central 30 degrees of the field (Octopus perimeter), color sensitivity (Farnsworth-Munsell 100-Hue test), or visual acuity. Contrast sensitivity showed a small increase at low spatial frequencies and a small decrease at high spatial frequencies. The latter change was small and not necessarily laser related, but precautions to limit laser exposure of the posterior pole are prudent.
我们对17只眼（10例患者）在氩激光虹膜切开术前和术后进行了多项视觉功能测试，以检测因在虹膜切开术形成和扩大过程中透射至眼后节的强烈蓝绿光照射而导致的光感受器弥漫性光化学损伤。在视野中央30度（Octopus视野计）的静态阈值敏感度、颜色敏感度（Farnsworth-Munsell 100色调试验）或视力方面未检测到变化。对比敏感度在低空间频率处有小幅增加，在高空间频率处有小幅下降。后一种变化较小，不一定与激光有关，但采取措施限制后极部的激光照射是明智的。
