本文对11岁以上正常人374例视神经孔径值作了测量,结果正常值,女性甲乙径分别为5.53～3.65,5.68～3.88毫米,男性甲乙径分别为5.95～3.65,6.02～3.86;双侧孔径直相差均在1.5毫米以内,如果一侧孔径在6毫米以上,且较对侧增大1.6毫米,即肯定为视神经孔扩大,需结合临床表现,作出明确判断。本文还指出正常人视神经孔径大小,性别之间有显著差异,但与年龄、眶距无关。 In this paper, 374 cases of normal subjects over the age of 11 optic nerve diameter measurements were made, the results of normal, female A diameter were 5.53 ~ 3.65,5.68 ~ 3.88 mm, male A diameter of 5.95 ~ 3.65,6.02 ~ 3.86; Straight difference are less than 1.5 mm, if the side of the hole in more than 6 mm, 1.6 mm larger than the opposite side, which is certainly for the enlargement of the optic nerve hole, the need to combine clinical manifestations to make a clear judgment. This article also points out that there are significant differences in the optic nerve diameter and normal sex in normal subjects, but not with age and orbital distance.