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首页> 外文期刊>American Journal of Ophthalmology: The International Journal of Ophthalmology >Correlations among upper and lower tear menisci, noninvasive tear break-up time, and the Schirmer test.
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Correlations among upper and lower tear menisci, noninvasive tear break-up time, and the Schirmer test.

机译：上下眼泪半月板，无创眼泪破裂时间和Schirmer试验之间的相关性。

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PURPOSE: To determine the relationships among tear meniscus parameters, noninvasive tear break-up time (NITBUT), and the Schirmer test. DESIGN: Experimental study. METHODS: Thirty-six subjects were tested on one randomly selected eye. Real-time corneal optical coherence tomography (OCT) was used to image the upper and lower tear menisci during normal and delayed blinking followed by measurement of NITBUT and the Schirmer test. Digital images of the eye were taken for measuring the lid lengths to estimate tear volume in the menisci. RESULTS: Compared with normal blinking, significant increases of tear menisci occurred during delayed blinking (post hoc, P < .01). NITBUT was weakly but significantly correlated with the height (r = 0.36; P = .03) and area (r = 0.37; P = .03) of the lower tear meniscus during normal blinks. NITBUT was also correlated with the lower tear meniscus volume (r = 0.45; P < .05) and total tear meniscus volume (r = 0.43; P < .05) during normal blinking. The Schirmer test was not significantly related to any parameters of the tear menisci, volumes, or NITBUT; however, it was negatively correlated with the age of the subjects (r = -0.47; P = .004). The age was negatively correlated with the upper tear meniscus (r ranged from 0.36 to 0.37 for the radius, height, and area, P < .05) measured during delayed blinking. CONCLUSIONS: NITBUT appears correlated with the lower tear meniscus during normal blinking, and the Schirmer test appears not correlated with the noninvasively measured tear meniscus.
机译：目的：确定泪液半月板参数，无创泪液破裂时间（NITBUT）和Schirmer测试之间的关系。设计：实验研究。方法：36只受试者在一只随机选择的眼睛上进行了测试。实时角膜光学相干断层扫描（OCT）用于在正常眨眼和延迟眨眼期间对上，下泪液半月板成像，然后测量NITBUT和Schirmer测试。拍摄眼睛的数字图像以测量眼睑的长度，以估计半月板的泪液体积。结果：与正常眨眼相比，延迟眨眼期间泪液半月板明显增加（事后，P <.01）。在正常眨眼期间，NITBUT与下泪液半月板的高度（r = 0.36; P = .03）和面积（r = 0.37; P = .03）呈弱相关性，但显着相关。在正常眨眼期间，NITBUT还与较低的泪液弯月面体积（r = 0.45; P <.05）和总泪液弯月面体积（r = 0.43; P <.05）相关。 Schirmer测试与泪液半月板，体积或NITBUT的任何参数均无显着相关;但是，它与受试者的年龄呈负相关（r = -0.47; P = .004）。年龄与延迟眨眼期间测得的上泪液弯月面呈负相关（半径，高度和面积，r范围为0.36至0.37，P <.05）。结论：正常眨眼时NITBUT与下半月板撕裂相关，而Schirmer测试与非侵入式测量的半月板无关。

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