Movement of internal canalicular orifice in association with blinking: direct observation after dacryocystorhinostomy.
Movement of internal canalicular orifice in association with blinking: direct observation after dacryocystorhinostomy.
复制标题
与眨眼相关的内泪小管口的运动：泪囊鼻腔吻合术后的直接观察。
DOI：
10.1016/j.ajo.2013.06.021
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发表时间：
2013
期刊：
影响因子：
4.2
通讯作者：
Nakamura Y.
中科院分区：
文献类型：
--
作者：
Kakizaki H;Takahashi Y;Miyazaki H;Nakamura Y.
PurposeTo examined movement of internal canalicular orifice with blinking and lacrimal drainage under endonasal endoscopic observation after dacryocystorhinostomy.DesignObservational anatomical study.MethodsTwenty internal canalicular orifices（right 9，left 11）from 15 patients（age range：44-77 years）who were permanently examined endonasal dacryocystorhinostomy.患者坐在椅子上，下巴略微向上突出，同时拍摄数字图像。检查后的内部泪小管口眨眼的运动，病人的眼睛被染色与荧光素染料，并从孔扩散检查与blinking.ResultsThe内部泪小管口关闭眼睑开放期间，虽然总是不完全。在眼睑闭合时，开口打开，并且被横向拉动而没有褶皱。所有20个内泪小管口形成一个憩室。三个标本显示上、下泪小管末端排空到憩室。这些泪小管末端的闭合总是不完全的。正常眨眼时内泪小管口的运动很轻微，但强迫眨眼导致更多的运动。泪囊壁运动轻微。在不眨眼的最初几秒钟内，没有荧光素染料从孔口流出。几次眨眼后，荧光素染料从孔中缓慢流出，并随着眨眼次数的增加而增加。荧光素染料在重力的作用下沿轨道移动。强迫眨眼与更多的染料inflation.ConclusionsThe内泪小管口不完全关闭在眼睑开放，但这个孔很大程度上打开在眼睑关闭，与缓慢的重力流入的泪液。
PurposeTo examine movement of the internal canalicular orifice with blinking and lacrimal drainage under endonasal endoscopic observation after dacryocystorhinostomy.DesignObservational anatomic study.MethodsTwenty internal canalicular orifices (right 9, left 11) from 15 patients (age range: 44-77 years) who underwent endoscopic endonasal dacryocystorhinostomy were prospectively examined. The patients sat on a chair with the chin projected slightly upward while digital images were taken. After examining the movement of the internal canalicular orifice with blinking, the patient's eye was stained with fluorescein dye, and diffusion from the orifice was examined with blinking.ResultsThe internal canalicular orifice closed during eyelid opening, although always incompletely. In eyelid closing, the orifice opened, and was pulled laterally without folds. All 20 internal canalicular orifices formed a diverticulum. Three specimens illustrated the upper and lower canalicular ends emptying into the diverticulum. The closing of these canalicular ends was always incomplete. Movement of the internal canalicular orifice was slight during normal blinking, but forced blinking resulted in more movement. Movement of the lacrimal sac wall was slight. During the first few seconds without blinking, no fluorescein dye flowed from the orifice. After several blinks, fluorescein dye flowed out slowly from the orifice, and increased in volume with more blinking. The fluorescein dye traveled inferiorly by gravity. A forced blinking was related to more dye inflow.ConclusionsThe internal canalicular orifice incompletely closed during eyelid opening, but this orifice largely opened during eyelid closing, with a slow gravitational inflow of lacrimal fluid.