Groessl S A, Sires B S, Lemke B N
Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, USA.
Arch Ophthalmol. 1997 Jan;115(1):71-4. doi: 10.1001/archopht.1997.01100150073012.
To measure any sex size differences in the bony nasolacrimal drainage systems in a normal, age-matched population.
A retrospective study of axial cut maxillofacial computed tomographic scans was conducted. Three levels of the bony nasolacrimal duct (NLD) system on the right and left sides were measured along the anteroposterior diameter. The data were analyzed using 2-tail t test, analysis of variance, and linear regression methods.
Scans from 71 adult patients (36 men and 35 women) were reviewed. Women were found to have a smaller bony diameter at the level of the lower fossa (P = .01) and the middle NLD (P = .06) compared with those of men. The adult inferior bony fossa increased in size with age in both men and women, while the middle NLD increased in size in men only. No significant size difference was found between the right and left side at any level.
Size differences are found in measurements of bony nasolacrimal excretory systems in men vs women. Women have significantly smaller dimensions in the lower nasolacrimal fossa and the middle NLD. The anteroposterior dimension of the bony nasolacrimal canal at the fossa level enlarged in both sexes, with age co-inciding with osteoporotic changes throughout the body. These quantitative anatomical observations provide a contributory factor to explain the increased prevalence of primary acquired NLD obstruction in women.
在年龄匹配的正常人群中测量骨性鼻泪引流系统的性别尺寸差异。
对轴向切割的颌面计算机断层扫描进行回顾性研究。沿前后径测量左右两侧骨性鼻泪管（NLD）系统的三个水平。使用双尾t检验、方差分析和线性回归方法分析数据。
回顾了71例成年患者（36名男性和35名女性）的扫描结果。发现女性在下窝水平（P = 0.01）和鼻泪管中部（P = 0.06）的骨性直径小于男性。成年男性和女性的下骨性窝大小均随年龄增加，而鼻泪管中部仅在男性中随年龄增加。在任何水平上，左右两侧之间均未发现明显的尺寸差异。
男性和女性骨性鼻泪排泄系统的测量存在尺寸差异。女性在下鼻泪窝和鼻泪管中部的尺寸明显较小。窝水平的骨性鼻泪管前后径在两性中均增大，且年龄与全身骨质疏松变化一致。这些定量解剖学观察结果为解释女性原发性获得性鼻泪管阻塞患病率增加提供了一个因素。
