Lemke B N, Stasior O G
Arch Ophthalmol. 1982 Jun;100(6):981-6. doi: 10.1001/archopht.1982.01030030989019.
An anatomical study was performed to gain a better understanding of the pathogenesis of eyebrow ptosis. Through cadaver dissection, we sought to establish the anatomy of the normal eyebrow, to determine why the temporal part of the eyebrow becomes ptotic earlier than the medial portion, and to locate precisely the regional nerves and vessels to aid the eyebrow surgeon. a fat-pad exists beneath the eyebrow. Dense attachments on the underside of the eyebrow fat-pad secure the eyebrow to the supraorbital ridge. Because the supraorbital ridge extends only over the medial one half to two thirds of the orbit, the lateral part of the eyebrow lacks deep support and droops with the frontal skin and muscle relaxation seen in age. Vertical lateral orbicularis fibers are consistently seen in the cadaver. Because of their location, they may play a role in producing "laugh lines."
进行了一项解剖学研究，以更好地了解眉下垂的发病机制。通过尸体解剖，我们试图确定正常眉毛的解剖结构，确定眉的颞部为何比内侧部分更早出现下垂，并精确找到该区域的神经和血管，以协助眉部外科医生。眉下存在一个脂肪垫。眉脂肪垫下侧的致密附着将眉毛固定于眶上嵴。由于眶上嵴仅延伸至眼眶内侧的二分之一至三分之二，眉的外侧部分缺乏深部支撑，会随着年龄增长出现的额部皮肤和肌肉松弛而下垂。在尸体中始终可见垂直的外侧眼轮匝肌纤维。因其位置关系，它们可能在产生“笑纹”方面发挥作用。
