Guercio Brian, Keyhani Kayvan, Weinberg David A
Ophthalmic Plastic Surgery Section, Division of Ophthalmology, University of Vermont College of Medicine, Burlington, VT, USA.
Orbit. 2007 Mar;26(1):15-8. doi: 10.1080/01676830600975164.
Lacrimal pump failure refers to epiphora due to reduced tear outflow in the presence of a patent lacrimal drainage system and well-positioned puncta. This condition has been managed with dacryocystorhinostomy and lower eyelid tightening, which carry success rates of 50-94% and 84-91%, respectively. In this retrospective study, 23 eyes with symptomatic epiphora attributed to lacrimal pump failure underwent the lateral tarsal strip procedure and lower eyelid snip punctoplasty, and 20 eyes (87%) experienced complete or nearly complete resolution of tearing. This success rate is quite similar to that of prior studies of eyelid tightening alone for lacrimal pump failure, suggesting that the addition of the snip punctoplasty may not offer any additional benefit in patients with little or no punctal stenosis. All patients displayed some degree of lower eyelid laxity on lid distraction testing preoperatively, and those with only mild lid laxity responded at least as well as those with more severe laxity.
泪泵功能不全是指在泪道引流系统通畅且泪点位置正常的情况下，因泪液流出减少而导致的溢泪。这种情况过去通过泪囊鼻腔吻合术和下睑收紧术来治疗，其成功率分别为50% - 94%和84% - 91%。在这项回顾性研究中，23只因泪泵功能不全出现症状性溢泪的眼睛接受了外侧睑板条手术和下睑泪点切开成形术，其中20只眼睛（87%）的流泪症状完全或几乎完全缓解。这一成功率与之前单独进行下睑收紧术治疗泪泵功能不全的研究结果非常相似，表明对于泪点狭窄很少或没有泪点狭窄的患者，增加泪点切开成形术可能不会带来额外益处。所有患者术前进行眼睑牵拉试验时均表现出一定程度的下睑松弛，仅轻度睑松弛的患者与重度睑松弛的患者反应至少一样好。
