Sultanov M Iu, Alieva Z A, Tagi-zade N S
Arkh Anat Gistol Embriol. 1984 Sep;87(9):74-7.
In order to define more accurately normal dimensions and form of the lacrimal point as well as peculiarities in the structure of the vertical part of the lacrimal canaliculus, 315 practically healthy persons (630 eyes) at the age of 18-60 years have been examined. The procedure has been performed by means of the slit lamp (shchl-1) . The lacrimal point has been found to have a round (36.1%) and an oval (63.9%) form. Transition of the lacrimal point into the vertical part of the lacrimal canaliculus in 83.5% of the observations is "fannel"-shaped with a maximal narrowing at the depth of 0.4-0.5 mm, and in 16.5%-- well"-shaped (without any narrowing). The normal diameter of the lacrimal point is 0.2-0.6 mm (the arithmetic mean-- 0.35 mm). When the diameter of the lacrimal point is less than 0.2 mm (at least in one of its sections), the lacrimation function correspondingly deteriorates, indices of the coloured nasolacrimal test become decreased or negative.
为了更准确地界定泪点的正常尺寸、形态以及泪小管垂直部结构的特点，对315名年龄在18至60岁之间的实际健康者（630只眼）进行了检查。检查过程借助裂隙灯（shchl - 1）进行。发现泪点呈圆形的占36.1%，呈椭圆形的占63.9%。在83.5%的观察中，泪点与泪小管垂直部的过渡呈“扇形”，在深度为0.4 - 0.5毫米处有最大程度的狭窄，而在16.5%的观察中呈“井”形（无任何狭窄）。泪点的正常直径为0.2 - 0.6毫米（算术平均值为0.35毫米）。当泪点直径小于0.2毫米时（至少在其某一部位），泪液分泌功能相应变差，彩色鼻泪管试验指标降低或呈阴性。
