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首页> 外文期刊>Investigative ophthalmology & visual science >Comparative Analysis of Eyelid Contour Changes in M??llera??s Muscle Conjunctival Resection and External Levator Resection Ptosis Surgery
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Comparative Analysis of Eyelid Contour Changes in M??llera??s Muscle Conjunctival Resection and External Levator Resection Ptosis Surgery

机译：M？llera肌肉结膜切除术与外提肌切除术眼睑手术眼睑轮廓变化的比较分析

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Purpose : Although M??llera??s Muscle Conjunctival Resection (MMCR) and External Levator Resection (ELR) are widely utilized to manage ptosis, there is little direct comparative data regarding outcomes. Further, there is a dearth of available data concerning objective or quantitative assessment of eyelid contour results. This study aims to assess relative changes in upper eyelid contour for patients undergoing MMCR and ELR surgery. Methods : In this retrospective cohort study, 20 eyes of 10 patients who underwent MMCR and 20 eyes of 16 patients who underwent ELR in a single center were included. Patients with history of previous or concurrent eyelid surgery or orbital disease were excluded. Primary position photographs were obtained pre-operatively and 3 months postoperatively. Processing and measurement of the digital photos with public domain NIH ImageJ software proceeded as follows. Images were rotated in order that a line intersecting the lateral canthi was made parallel to the horizontal axis. The center of the pupil was then defined as the 0,0 coordinate. Images were calibrated using a standard corneal diameter for males and females respectively. Along the x-axis,10 points were defined:at the center of the pupil and at 2mm intervals laterally to 10mm and medially to 8mm(Figure 1). This was performed at baseline and postoperative photographs. One-way and repeated measures ANOVA were performed Results : The overall main effect of position was significant(p0.05) indicating there is variation in vertical height across the eyelid. The effect of time was also significant(p0.05) indicating that the vertical height of the eyelid changed with surgery. When assessing individual point differences between groups, there was a significant interaction effect of group on time at the nasal-most positions of 6 and 8mm(p0.05), with a trend at 4mm(p0.07), indicating a greater change with MMCR at these positions(Figure 2a). Comparing change in height at each point across the two groups revealed MMCR to have greater change at positions N4, N6 and N8(p0.05) (Figure 2b). Conclusions : Both MMCR and ELR are effective in elevating the eyelid. Relative to ELR, there is a small but significant bias towards increased vertical elevation medial to the center of the pupil in the MMCR group. This suggests that there may be a relative medial bias with MMCR, or conversely a lateral bias with ELR.This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.??View OriginalDownload Slide.
机译：目的：尽管M？llera？的结膜肌肉切除术（MMCR）和外提肌切除术（ELR）被广泛用于治疗上睑下垂，但关于结局的直接比较数据很少。此外，缺乏关于眼睑轮廓结果的客观或定量评估的可用数据。这项研究旨在评估接受MMCR和ELR手术的患者上眼睑轮廓的相对变化。方法：在这项回顾性队列研究中，纳入了10例接受MMCR的患者的20眼和16例接受ELR的患者的20眼。有既往或同时有眼睑手术史或眼眶疾病史的患者被排除在外。术前和术后> 3个月获得原位照片。使用公共领域NIH ImageJ软件处理和测量数字照片的过程如下。旋转图像，以使与侧can相交的线平行于水平轴。然后将瞳孔中心定义为0,0坐标。分别使用男性和女性的标准角膜直径对图像进行校准。沿x轴定义了10个点：在瞳孔中心，以2mm的间隔从侧面到10mm，从中间到8mm（图1）。这是在基线和术后照片上进行的。结果：位置的总体主要影响是显着的（p <0.05），表明整个眼睑的垂直高度存在变化。时间的影响也很显着（p <0.05），表明眼睑的垂直高度随手术而改变。在评估组之间的个体差异时，组在最鼻端6mm和8mm处有明显的交互作用（p <0.05），趋势在4mm（p <0.07）处，表明随着时间的变化更大。在这些位置的MMCR（图2a）。两组的每个点的高度变化比较表明，MMCR在位置N4，N6和N8处具有更大的变化（p <0.05）（图2b）。结论：MMCR和ELR均可有效地抬高眼睑。相对于ELR，在MMCR组中，朝向瞳孔中央的垂直仰角增加有一个很小但很明显的偏差。这表明MMCR可能存在相对内侧偏倚，而ELR可能存在相对偏倚，这是提交给2016年5月1-5日在华盛顿州西雅图举行的2016 ARVO年会的摘要。查看原始下载幻灯片。

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