GROWTH OF OPTIC NERVE/GLOBE COMPLEX

视神经/地球仪生长的几何近似 复杂 视神经/地球仪复合体的手术操作是有限的 视神经孔周围仅有轻微的内外向运动; 因此，该复合体与骨的正常关系 轨道对于规划和修正 颅面畸形 本研究将几何公式应用于 预先存在的轨道增长数据，以近似两个 视神经/地球仪复合体的三维正常发育。 五个线性和四个角度的维度，从出生到 15岁 每个年龄段的平均值和范围为 研究，以描述相关的增长模式， 视神经/地球仪复合体。从这个标量信息中， 创建了综合体的空间地图。 在观察到的眼眶尺寸中，视神经轴长度， 显示视神经/地球仪长度和眶轴长度 类似的增长模式与快速发展发生在 出生后的前3年，生长速度较慢， 青春期 所有四个角度，眶间角， 眶轴角、视神经轴角和瞳孔/眶 边缘角度显示从出生到15岁的发育可以忽略不计， 年龄 两个线性维度描述了轨道的宽度， 瞳孔/眶缘宽度和眶宽， 在发展过程中有着相似的特点。 这两个维度都在增长， 在出生后的头2年内， 在15岁之前生长速度较慢。 视神经/地球仪生长的定量知识 复杂的是一个工具，可以提高术前的准确性， 治疗计划、术中操作和术后 评价最终，量化干预将导致 功能和美学结果的更大可预测性。 关键词：颅面畸形，视神经/地球仪复合体

Geometric Approximation of the Growth of the Optic Nerve/Globe Complex Surgical manipulation of the optic nerve/globe complex is limited to only slight mediolateral movement about the optic foramen; therefore, the normal relationship of this complex to the bony orbit is of prime importance for the planning and correction of craniofacial anomalies. This study applied geometric formulas on pre-existing orbital growth data in order to approximate the two dimensional normal development of the optic nerve/globe complex. Five linear and four angular dimensions were followed from birth to 15 years of age. The means and ranges at each age interval were examined in order to describe the growth patterns associated with the optic nerve/globe complex. From this scalar information, a spatial map of the complex was created. Of the orbital dimensions observed, the optic nerve axis length, the optic nerve/globe length and the orbit axis length displayed similar patterns of growth with rapid development occurring in the first 3 years of life followed by a slower rate of growth through puberty. All four angular dimensions, the interorbital angle, the orbit axis angle, the optic nerve axis angle and the pupil/orbital rim angle revealed negligible development from birth to 15 years of age. The two linear dimensions describing the width of the orbit, the pupil/orbital rim width and the orbital width, exhibited similar characteristics in development. Both dimensions grew at moderate rates during the first 2 years after birth, followed by slower rates of growth through age 15 years. Quantitative knowledge of the growth of the optic nerve/globe complex is a tool which could boost the accuracy of pre-operative treatment planning, intra-operative manipulation and post-operative evaluation. Ultimately, quantitative intervention will lead to greater predictability of functional and esthetic results. Keywords: craniofacial anomalies, optic nerve/globe complex