找到裂孔是视网膜脱离病人术前检查的关键步骤。如果注意到脱离形状是同裂孔位置、重力作用和视网膜贴附的解剖部位(锯齿缘、视神经)有依赖关系,那么,寻找裂孔就相当容易。视网膜脱离通常从裂孔处开始,向锯齿缘扩展,尔后视重力大小向视乳头扩展,或是《绕过》视乳头。因此,裂孔所在一侧的脱离程度几乎总比对侧高,由此可见,视网膜脱离形状取决于裂孔 Finding a hiatus is a critical step in the preoperative examination of a patient with retinal detachment. If you notice that the detachment is dependent on the location of the fissures, the gravitation is dependent on the anatomy (serrations, optic nerves) attached to the retina, it is fairly easy to look for holes. Retinal detachment usually begins at the notch and extends to the serrated edge, which then expands toward the papillae depending on the amount of gravity, or “bypasses” the papillae. Therefore, the degree of detachment on the side where the hole is located is almost always higher than that on the contralateral side. Thus, it can be seen that the shape of the retinal detachment depends on the shape of the hole