Abstract：
BACKGROUND: To measure the degree of curvature of the retinal artery trajectory (RAT) and retinal vein trajectory (RVT) in the eyes of patients with vitreomacular traction (VMT) and compare them with their healthy fellow eyes.
METHODS: This was a retrospective, cross-sectional, case-control study of 58 eyes of 29 patients with unilateral VMT. The participants were divided into two groups. Group 1 VMT was defined as having only morphological changes, while group 2 VMT was defined as morphological changes accompanied by the presence of a cyst or hole to quantify the severity of the disease. The RATs and RVTs were assessed from the color fundus photographs using the ImageJ program. The fundus photographs were rotated 90°. The course of the retinal arteries and veins were marked on a color fundus photograph and fitted to a second-degree polynomial curve (axe[x]/100+bx+c). The coefficient \'\'a\'\' was the width and steepness of the trajectories. The comparison between the RAT and RVT of VMT and healthy fellow eyes was investigated and the association between the RAT and RVT and the severity of disease were determined using the Image J program.
RESULTS: Eleven subjects were male, and 18 subjects were female. The mean ± SD age was 70.6 ± 7.6 years. Eighteen of the eyes had VMT in the right and 11 of the eyes had VMT in the left eye. Eleven eyes were in group 1 and 18 eyes were in group 2. Axial length (AL) was similar between the two groups (22.63 ± 1.20 mm vs 22.45 ± 1.45 mm p = 0.83) (Table 1). The mean RAT was 0.60 ± 0.18 in eyes with VMT and 0.51 ± 0.17in healthy eyes (p = 0.063). The mean RVT was 0.74 ± 0.24 in eyes with VMT and 0.62 ± 0.25 in healthy eyes for the whole group (p = 0.02). In group 1, the mean RVT of the eyes with VMT was statistically significantly higher than the healthy eyes (p = 0.014). There was not any statistically significant difference for the other parameters evaluated between eyes with VMT and healthy eyes according to the groups and the whole group. (Tables 2-4) CONCLUSION: Unlike other vitreoretinal interface diseases such as epiretinal membrane and macular hole, VMT may be characterized by a narrower RVT, which is characterized by a larger \"a\" value.
METHODS: This was a retrospective, cross-sectional, case-control study of 58 eyes of 29 patients with unilateral VMT. The participants were divided into two groups. Group 1 VMT was defined as having only morphological changes, while group 2 VMT was defined as morphological changes accompanied by the presence of a cyst or hole to quantify the severity of the disease. The RATs and RVTs were assessed from the color fundus photographs using the ImageJ program. The fundus photographs were rotated 90°. The course of the retinal arteries and veins were marked on a color fundus photograph and fitted to a second-degree polynomial curve (axe[x]/100+bx+c). The coefficient \'\'a\'\' was the width and steepness of the trajectories. The comparison between the RAT and RVT of VMT and healthy fellow eyes was investigated and the association between the RAT and RVT and the severity of disease were determined using the Image J program.
RESULTS: Eleven subjects were male, and 18 subjects were female. The mean ± SD age was 70.6 ± 7.6 years. Eighteen of the eyes had VMT in the right and 11 of the eyes had VMT in the left eye. Eleven eyes were in group 1 and 18 eyes were in group 2. Axial length (AL) was similar between the two groups (22.63 ± 1.20 mm vs 22.45 ± 1.45 mm p = 0.83) (Table 1). The mean RAT was 0.60 ± 0.18 in eyes with VMT and 0.51 ± 0.17in healthy eyes (p = 0.063). The mean RVT was 0.74 ± 0.24 in eyes with VMT and 0.62 ± 0.25 in healthy eyes for the whole group (p = 0.02). In group 1, the mean RVT of the eyes with VMT was statistically significantly higher than the healthy eyes (p = 0.014). There was not any statistically significant difference for the other parameters evaluated between eyes with VMT and healthy eyes according to the groups and the whole group. (Tables 2-4) CONCLUSION: Unlike other vitreoretinal interface diseases such as epiretinal membrane and macular hole, VMT may be characterized by a narrower RVT, which is characterized by a larger \"a\" value.
摘要：
背景：测量玻璃体黄斑牵引（VMT）患者眼睛的视网膜动脉轨迹（RAT）和视网膜静脉轨迹（RVT）的弯曲程度，并将其与健康的眼睛进行比较。
方法：这是一个回顾性研究，横截面,29例单侧VMT患者58只眼的病例对照研究。参与者分为两组。第1组VMT定义为仅有形态学变化，而第2组VMT定义为伴有囊肿或孔的形态学变化，以量化疾病的严重程度。使用ImageJ程序从彩色眼底照片评估RAT和RVT。眼底照片旋转90度。在彩色眼底照片上标记视网膜动脉和静脉的路线，并拟合到二次多项式曲线（ax[x]/100bxc）。系数\'\'a\'\'是轨迹的宽度和陡度。研究了玻璃体黄斑牵引和健康眼睛的RAT和RVT之间的比较，并使用ImageJ程序确定了RAT和RVT与疾病严重程度之间的关联。
结果：11名受试者为男性，18名受试者为女性。平均±SD年龄为70.6±7.6岁。18只眼睛的右侧有VMT，11只眼睛的左眼有VMT。第1组11只眼，第2组18只眼。两组之间的轴向长度（AL）相似（22.63±1.20mmvs22.45±1.45mmp=0.83）。（表1）VMT眼的平均RAT为0.60±0.18，健康眼的平均RAT为0.51±0.17（p=0.063）。全组VMT眼的平均RVT为0.74±0.24，健康眼的平均RVT为0.62±0.25（p=0.02）。在第1组中，具有VMT的眼睛的平均RVT在统计学上显着高于健康眼睛（p=0.014）。根据各组和整个组，在使用VMT的眼睛和健康眼睛之间评估的其他参数没有任何统计学上的显着差异。（表2-3-4）结论：与其他玻璃体视网膜界面疾病如视网膜前膜和黄斑裂孔不同，VMT的特征可能是较窄的RVT，，其特征是一个更大的“a”值。
方法：这是一个回顾性研究，横截面,29例单侧VMT患者58只眼的病例对照研究。参与者分为两组。第1组VMT定义为仅有形态学变化，而第2组VMT定义为伴有囊肿或孔的形态学变化，以量化疾病的严重程度。使用ImageJ程序从彩色眼底照片评估RAT和RVT。眼底照片旋转90度。在彩色眼底照片上标记视网膜动脉和静脉的路线，并拟合到二次多项式曲线（ax[x]/100bxc）。系数\'\'a\'\'是轨迹的宽度和陡度。研究了玻璃体黄斑牵引和健康眼睛的RAT和RVT之间的比较，并使用ImageJ程序确定了RAT和RVT与疾病严重程度之间的关联。
结果：11名受试者为男性，18名受试者为女性。平均±SD年龄为70.6±7.6岁。18只眼睛的右侧有VMT，11只眼睛的左眼有VMT。第1组11只眼，第2组18只眼。两组之间的轴向长度（AL）相似（22.63±1.20mmvs22.45±1.45mmp=0.83）。（表1）VMT眼的平均RAT为0.60±0.18，健康眼的平均RAT为0.51±0.17（p=0.063）。全组VMT眼的平均RVT为0.74±0.24，健康眼的平均RVT为0.62±0.25（p=0.02）。在第1组中，具有VMT的眼睛的平均RVT在统计学上显着高于健康眼睛（p=0.014）。根据各组和整个组，在使用VMT的眼睛和健康眼睛之间评估的其他参数没有任何统计学上的显着差异。（表2-3-4）结论：与其他玻璃体视网膜界面疾病如视网膜前膜和黄斑裂孔不同，VMT的特征可能是较窄的RVT，，其特征是一个更大的“a”值。
