Clinical measurement of compensatory torsional eye movement during head tilt
Clinical measurement of compensatory torsional eye movement during head tilt
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DOI：
10.1111/aos.13150
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发表时间：
2017-03-01
影响因子：
3.4
通讯作者：
Oh, Sei Yeul
中科院分区：
文献类型：
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作者：
Lim, Han Woong;Kim, Ji Hong;Oh, Sei Yeul
目的：目的：采用眼底照相方法测量头倾斜时眼球代偿性扭转运动的程度。方法：我们招募了55名20-66岁的健康受试者。在假定的基线位置和逐步头部倾斜位置获得眼底照片，以使用非散瞳眼底照相机评估眼球扭转。同时拍摄鼻子上的水平标记以评估头部倾斜。图像进行分析，使用Photoshop来衡量的程度，眼球扭转和headtight.Results：一致的补偿扭转眼球运动观察在所有的科目在头部倾斜。眼球代偿性扭转运动的程度与倾斜角度呈正相关。在头部倾斜时观察到眼球扭转不共辄，眼球外旋运动大于眼球内旋运动（4.88 +/- 2.91度对4.50 +/- 2.76度，p < 0.001）。多元线性回归分析显示，代偿性扭转眼球运动的程度与头倾斜度（β = 0.191，p < 0.001）和眼球旋转方向（β =-0.548，p < 0.001）显著相关。结论：眼底照相法是一种无创、准确、客观的测量代偿性扭转眼球运动的方法。考虑到眼底照相在临床眼科实践中的可用性，所提出的方法可以用作临床工具来测量代偿性扭转眼球运动。
Purpose: To measure the degree of compensatory torsional eye movement during head tilt using a fundus photography method.Methods: We enrolled 55 healthy subjects who were 20-66 years of age. Fundus photographs were obtained in the presumed baseline position and in stepwise head tilt positions to evaluate ocular torsion using a non-mydriatic fundus camera. Horizontal marks on the nose were photographed simultaneously to evaluate head tilt. Images were analysed using Photoshop to measure the degree of ocular torsion and head tilt.Results: A consistent compensatory torsional eye movement was observed in all subjects during head tilt. The degree of compensatory torsional eye movement showed a positive correlation with the angle of head tilt. Ocular torsional disconjugacy was observed during head tilt, with larger excycloductional eye movement than incycloductional eye movement (4.88 +/- 2.91 degrees versus 4.50 +/- 2.76 degrees, p < 0.001). In multiple linear regression analysis, the degree of compensatory torsional eye movement was significantly associated with the degree of head tilt (beta = 0.191, p < 0.001), and the direction of cycloduction (beta = -0.548, p < 0.001).Conclusions: The fundus photography method is a non-invasive, accurate and objective tool for measuring compensatory torsional eye movement. Considering the availability of fundus photography in clinical ophthalmology practice, the proposed method can be used as a clinical tool to measure compensatory torsional eye movement.