The influence of orbital vector on involutional entropion and ectropion
The influence of orbital vector on involutional entropion and ectropion
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DOI：
10.1080/01676830.2017.1363786
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发表时间：
2018-01-01
期刊：
影响因子：
--
通讯作者：
Tabatabaie, Seyed Ziaeddin
中科院分区：
文献类型：
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作者：
Rajabi, Mohammad Taher;Gholipour, Farshad;Tabatabaie, Seyed Ziaeddin
目的：本研究旨在评价眼眶向量和其他生物学参数（即轴向地球仪长度、轴向地球仪投影）对退化性睑内翻或睑外翻的影响。其中退化性睑内翻128眼，退化性睑外翻39眼，均发生在下睑。采用Hertel眼球突出测量法测量轴位地球仪投影，A型超声测量轴位地球仪长度，临床测量眼眶向量。分别使用卡方检验和双侧t检验比较患者特异性分类变量和连续变量。结果：睑内翻组和睑外翻组中女性分别占59%和33.3%。性别和眼睑错位类型之间存在显著相关性（p = 0.015）。睑外翻组的突眼测量阅读大于睑内翻组（分别为17.7 +/-2.5和10.8 +/-3.7 mm; p <0.001）。眼球轴向地球仪长度与眼球突出度阅读之间无显著相关性。87.5%的退化性睑内翻患者眼眶向量为正。退化性睑外翻92.3%的患者眶向量为负值（P <0.001）。眶向量为负的患者轴向地球仪投影大于眶向量为正的患者（分别为18.0 +/-2.1和10.6 +/-3.5 mm; p <0.001）。结论：眶向量测量与退化性睑内翻和睑外翻之间存在相关性。测量眼眶向量可能有助于预测眼睑错位的发展。
Purpose: This study aimed to evaluate the effect of orbital vector and other biometric parameters (i.e. axial globe length, axial globe projection) on the development of involutional entropion or ectropion.Methods: In this cross-sectional study, 167 eyes from 132 patients were included. Of these eyes, 128 had involutional entropion and 39 had involutional ectropion, all of lower lids. The axial globe projection was measured using Hertel exophthalmometry; axial globe length was assessed by A-mode ultrasound; and orbital vector was determined clinically. Patient-specific categorical variables and continuous variables were compared using the chi-square test and the two-sided t test, respectively. Correlations were derived using the Pearson correlation.Results: The percentage of females was 59% and 33.3% in the entropion group and in the ectropion group, respectively. A significant association was found between the gender and type of eyelid malposition (p = 0.015). Exophthalmometry reading was greater in the ectropion group than in the entropion group (17.7 +/- 2.5 versus 10.8 +/- 3.7 mm, respectively; p < 0.001). There was no significant correlation between axial globe length and exophthalmometry reading. Positive orbital vectors were observed in 87.5% of eyelids with involutional entropion. Negative orbital vectors were observed in 92.3% of eyelids with involutional ectropion (p < 0.001). Patients with negative orbital vectors showed greater axial globe projection than patients with positive orbital vectors (18.0 +/- 2.1 versus 10.6 +/- 3.5 mm, respectively; p < 0.001).Conclusions: There is an association between orbital vector measurement and involutional entropion and ectropion. Measuring the orbital vector may help predict the development of these lid malpositions.