Chen Zhe, Zheng Xiao-hua, Xie Bao-jun, Yuan Jia-ji, Yu Han-hua, Li Shou-hong
Department of Radiology, People Hospital of Wuhan University, Wuhan 430060, China.
Zhonghua Yan Ke Za Zhi. 2006 Mar;42(3):222-5.
To study the growth aspects of orbital volume and to establish the normal value of orbital volume by computed tomography (CT).
One hundred and twenty three individuals without eye diseases (64 males, 59 females) were divided into 5 groups according to the age. Orbital volume and length of horizontal transverse axis and anterior-posterior axis of the eye were measured at different levels in original or reconstructive CT images. The relationship between orbital volume and age, gender and eyeball volume was analyzed.
There was no difference between the left and right orbital volume in all age groups. Orbital volume grew rapidly before 20 years of old. Mean orbital volume in males aged 17 and females aged 13 was 23.54 and 21.75 ml, respectively, which reached 95% of the adult orbital volume. In normal adult, orbital volume in the male was larger than that of the female. The mean orbital volume of adult male and female was (25.04 +/- 2.37) ml and (22.89 +/- 2.67) ml, respectively. A strong linear correlation was presented between the age and orbital volume (P < 0.05). The difference of orbital volume between the male and female was statistically non-significant before 14 years old (P = 0.315). The growth of eyeball volume was consistent with that of the orbital volume, the ratio of eyeball/orbit volume was decreased with age from 0.40 to 0.26.
There is no difference between the right and left orbital volume. Orbital volume is correlated with age and gender. Orbital volume grows rapidly before 20 years of old and still grows slowly after 40 years old.
研究眼眶容积的生长情况，并通过计算机断层扫描（CT）建立眼眶容积的正常值。
123例无眼部疾病者（男64例，女59例）按年龄分为5组。在原始或重建的CT图像上，于不同层面测量眼眶容积及眼球水平横轴和前后轴的长度。分析眼眶容积与年龄、性别及眼球容积之间的关系。
各年龄组左右眼眶容积无差异。眼眶容积在20岁前增长迅速。17岁男性和13岁女性的平均眼眶容积分别为23.54 ml和21.75 ml，达到成人眼眶容积的95%。正常成年人中，男性眼眶容积大于女性。成年男性和女性的平均眼眶容积分别为（25.04±2.37）ml和（22.89±2.67）ml。年龄与眼眶容积呈强线性相关（P<0.05）。14岁前男女眼眶容积差异无统计学意义（P = 0.315）。眼球容积的增长与眼眶容积一致，眼球/眼眶容积比随年龄从0.40降至0.26。
左右眼眶容积无差异。眼眶容积与年龄和性别相关。眼眶容积在20岁前增长迅速，40岁后仍缓慢增长。
