Seiji Fernando, Moreira Rafael Saviolo, De Angelis Marco Antonio, Smith Chairman Ricardo Luiz
Federal University of Vale do Jequitinhonha e Mucuri, MG, Basic Sciences, Rua Geraldo Moacir Coelho 126, #104, Diamantina, 39100-000 Brazil.
Orbit. 2009;28(6):342-6. doi: 10.3109/01676830903162841.
The aim of this study was to analyze the human orbital asymmetry during development. One hundred twenty-seven identified human dry skulls, with sex, age, date and cause of death record, in good preservation state, were used. Bones that had evidence of trauma, malformations or other pathology were excluded. The sample was divided into 4 age groups: I--intra-uterine life (n=20), II--newborn up to 2 years old (n=43), III--three up to 20 years old (n=27) and IV--21 up to 76 years old (n=37). The skulls were photographed in normal frontalis and images were analyzed with the software AutoCAD 2002 in real scale. The obtained measurements were: greater horizontal diameter (HD), greater vertical diameter (VD), orbital perimeter and orbital base area. All skulls showed asymmetry in all measures, except 4 of them that showed symmetry in VD and perimeter. The asymmetry occurred in all ages, being calculated as a percent rate for VD--2.73%, HD--4.48%, area--4.77% and perimeter--2.47%. There was predominance in asymmetric rate in female skulls and only in the group II the difference between gender was statistically significant (p<0.05). The right orbit presented larger measures. The asymmetric rate was assumed as the normal anatomic pattern.
本研究的目的是分析发育过程中的人类眼眶不对称性。使用了127个已识别的人类干燥头骨，这些头骨保存状态良好，有性别、年龄、日期和死亡原因记录。排除有创伤、畸形或其他病理证据的骨骼。样本分为4个年龄组：I组——子宫内生活（n = 20），II组——新生儿至2岁（n = 43），III组——3岁至20岁（n = 27），IV组——21岁至76岁（n = 37）。对头骨进行正位拍照，并使用AutoCAD 2002软件按实际比例分析图像。获得的测量值包括：较大水平直径（HD）、较大垂直直径（VD）、眶周长和眶底面积。除4个头骨在VD和周长上显示对称外，所有头骨在所有测量中均显示不对称。不对称在所有年龄段均有发生，VD的不对称率计算为2.73%，HD为4.48%，面积为4.77%，周长为2.47%。女性头骨的不对称率占优势，仅在II组中性别差异具有统计学意义（p<0.05）。右侧眼眶的测量值更大。不对称率被视为正常解剖模式。
