Objective: to establish the measurement method of the normal orbital and optic canal by ct scanned, and to explore the clinical value of the orbital volume and its regressive equation.
目的：建立正常人眼眶及视神经管骨性径线ct测量的方法，探讨CT测量眼眶容积及其回归方程的临床意义。
2
Methods the cross sections of the optic nerve and the optic discs in 15 normal human eyes were examined with the use of a computerized image analysis system.
方法应用一种计算机图像分析系统对15只正常人眼视神经断面和视盘进行检测。
3
Along with the growth of age and body, optic axis gradually lengthens to the normal.