Narioka Junji, Matsuda Seiji, Ohashi Yuichi
Department of Ophthalmology and Division of Anatomy and Embryology, Ehime University School of Medicine, Ehime, Japan.
Clin Exp Ophthalmol. 2007 Sep-Oct;35(7):651-6. doi: 10.1111/j.1442-9071.2007.01558.x.
To determine the correlation between the anthropometric facial features and the anatomy of the nasolacrimal drainage system.
Forty-six mid-sagittal halves of 23 cadavers were studied. The inclination of the lacrimal sac (LS) and nasolacrimal duct (NLD), and the LS-NLD angle were measured in both the sagittal and coronal planes. For the facial features, the height, length and depth of the nose, the intercanthal distance, nasal breadth, nasofacial angle, distance between the external naris, and the inferior aperture of the NLD were measured. The correlations between the angles and the facial features were calculated.
The LS-NLD angle was classified into three anatomical types according to the inclination of the LS and the NLD in the sagittal and coronal planes; the anterior-inward type (43.5%), anterior-outward type (37.0%), and posterior-outward type (19.5%). The nasal depth was correlated with the sagittal LS-NLD angle, and the nasal height and length were correlated with the coronal LS-NLD angle.
There is a large variation in the LS-NLD angle, and nasal depth, height and length can be used to predict the direction of this angle.
确定面部人体测量特征与鼻泪引流系统解剖结构之间的相关性。
研究了23具尸体的46个正中矢状面半侧。在矢状面和冠状面测量泪囊（LS）和鼻泪管（NLD）的倾斜度以及LS-NLD角。对于面部特征，测量鼻的高度、长度和深度、内眦间距、鼻宽、鼻面角、鼻孔间距以及NLD的下口。计算角度与面部特征之间的相关性。
根据LS和NLD在矢状面和冠状面的倾斜度，LS-NLD角分为三种解剖类型；前内向型（43.5%）、前外向型（37.0%）和后外向型（19.5%）。鼻深度与矢状LS-NLD角相关，鼻高度和长度与冠状LS-NLD角相关。
LS-NLD角存在很大差异，鼻深度、高度和长度可用于预测该角度的方向。
