摘要视网膜神经纤维层分离（DONFL）是存在于视网膜后极部沿神经纤维走行分布的大量弧形暗纹，在横断面图像上与内层视网膜的局部凹陷相对应。由于内界膜（ILM）剥除过程中存在剥膜器械对局部视网膜的直接损伤作用，以及对后极部视网膜的广泛牵拉作用，在ILM剥除后常常可以观察到DONFL。目前认为DONFL是一种自发的、延迟的形态学改变，呈亚临床性，对视网膜的功能影响较小。除了避免ILM的剥除，尽量减少剥膜面积，还可采取全氟辛烷辅助下固定的ILM瓣复位手术、改良的颞侧ILM翻瓣手术以预防和减少DONFL的发生。DONFL的发生发展、临床特征及意义尚需进一步深入研究。

abstractsDissociated optic nerve fiber layer (DONFL) appearance is consists of numerous arcuate dark striae within the posterior pole in the direction of the optic nerve fibers. And on the cross-sectional image, DONFL was correspond to inner retinal dimples. It mainly occurs after the internal limiting membrane (ILM) peeling due to the direct damage on the local retina and the broad tractional effect on the posterior retina during membrane peeling. DONFL appearance is considered to be a spontaneous and delayed morphologic change with a subclinical nature, and appears to have little effect on retinal function. In addition to avoiding the removal of ILM and reducing the area of ILM peeling, a novel technique for reposition of the fixed ILM flap with the assistance of perfluoro-n-octane and the temporal inverted ILM flap technique can also be used to prevent and reduce the occurrence of DONFL appearance. Further studies on its development, clinical features and clinical significance are still required.