Department of Radiology, Bakirkoy Training and Research Hospital, Istanbul, Turkey.
Department of Ophthalmology, Beylikduzu State Hospital, Istanbul, Turkey.
Niger J Clin Pract. 2021 Apr;24(4):561-568. doi: 10.4103/njcp.njcp_77_20.
In this study, we retrospectively evaluated the orbital and ocular dimensions using computed tomography (CT) scans in healthy adults.
This retrospective study included 302 Turkish adult individuals aged 20-76 years (158 males and 144 females), who underwent paranasal sinus or craniofacial CT due to headache or suspicion of sinusitis, but abnormal orbital or cranial CT findings were not detected. Linear and volumetric measurements of the orbital structures were performed in the sagittal, coronal, and axial planes on CT slices. The volume was estimated in cubic centimeters using the equation of the ellipsoid method. A total of 34 parameters were measured from both eyes of each individual using 14 different anatomical landmarks and analyzed by gender and age.
Parameter values of orbital structures in males and females are shown in millimeters or cubic centimeters. In most of the 34 parameters that we evaluated, it was seen that males had statistically significant higher mean values than females (P < 0.05). Also, there was no statistically significant difference between the measurements of right and left orbits. The correlation with age was varied according to the 34 parameters. Interestingly enough, there were no statistically significant differences between the two genders for extraocular muscles thickness (except superior muscles group thickness-SMT) and left optic nerve thickness (LOT) (p > 0.05). The mean right superior muscles group thickness was 5.35 ± 0.85 mm in the male subjects and 4.64 ± 1.10 mm in the female subjects (P < 0.001). The mean left superior muscles group thickness (LSMT) was 5.28 ± 0.88 mm in the male subjects and 4.67 ± 1.16 mm in the female subjects (P < 0.001). The mean LOT was 6.15 ± 0.97 and 5.88 ± 1.07 mm in males and females, respectively (P = 0.099).
This study can be applied to the standardization of orbital morphometry in healthy adults.
本研究通过计算机断层扫描（CT）回顾性评估健康成年人的眼眶和眼球尺寸。
这项回顾性研究纳入了 302 名 20-76 岁的土耳其成年人（158 名男性和 144 名女性），他们因头痛或怀疑鼻窦炎而行鼻窦或颅面 CT 检查，但未发现异常的眼眶或颅 CT 发现。在 CT 切片的矢状面、冠状面和轴位上对眼眶结构进行线性和体积测量。使用椭圆体法方程以立方厘米为单位估计体积。使用 14 个不同的解剖学标志从每个人的双眼共测量了 34 个参数，并按性别和年龄进行了分析。
以毫米或立方厘米为单位显示了男性和女性眼眶结构的参数值。在我们评估的 34 个参数中，大多数参数的平均值男性明显高于女性（P<0.05）。此外，左右眼眶的测量值之间没有统计学上的显著差异。与年龄的相关性因 34 个参数而异。有趣的是，除了外直肌厚度（除外直肌组厚度-SMT）和左眼神经厚度（LOT）外（p>0.05），男女之间的外直肌厚度没有统计学上的显著差异。男性右眼外直肌组平均厚度为 5.35±0.85mm，女性为 4.64±1.10mm（P<0.001）。男性左眼外直肌组平均厚度（LSMT）为 5.28±0.88mm，女性为 4.67±1.16mm（P<0.001）。男性 LOT 平均为 6.15±0.97mm，女性为 5.88±1.07mm（P=0.099）。
本研究可应用于健康成年人眼眶形态测量的标准化。
