以往文献中所报道的激光所致的视网膜损伤，大部分是患者视网膜直接暴露于激光所致。本文观察了2例由于脉冲＊d（铰）：＊＊c激光反射光束所致的视网膜损伤。病例1：一男性物理研究生在用混合频率激光束做实验时注意到暗棕色物在右眼中心视野中飘动，飘动物逐渐散开并在患病限? Reported in the literature laser-induced retinal damage, most of the patients directly exposed to the retina caused by the laser. In this paper, 2 cases of retinal damage due to pulsed * d (hinge): ** c laser reflected light beam were observed. Case 1: A male physics graduate student noticed with a mixed-frequency laser beam that the dark-brown material fluttered in the central visual field of the right eye, and that the floating matter gradually spread out and became ill.