Clinical and Experimental Optometry Research Lab, Department of Physics (Optometry), School of Sciences, University of Minho, Braga, Portugal.
J Glaucoma. 2010 Dec;19(9):609-12. doi: 10.1097/IJG.0b013e3181ca7ca5.
The aim of this study was to assess the influence of the position (upright vs. supine) in the intraocular pressure (IOP) measured with a non-contact portable tonometer.
Fifty university students with a mean age of 22.3±4.2 years (mean±SD) were recruited to participate in this study. IOP was measured with the non-contact tonometer Keeler, Pulsair EasyEye. Measurements in upright and supine positions were randomly obtained. In the upright position, 2 series of 3 measures (UP1 and UP2) and a series of 3 measures in the supine position were performed.
The values obtained in the positions UP1 and UP2 were compared, as well as the values of the upright and supine positions. No statistically significant differences were found when comparing the values obtained in the upright position (P>0.05). Instead, when the subjects were in the supine position, IOP increased 2.47±2.12 mm Hg (mean±SD), as opposed to the value obtained in the upright position (P<0.001).
Results from this study showed that IOP increased when measured in the supine position and that the Pulsair EasyEye tonometer can determine those variations in a healthy young population.
本研究旨在评估非接触式便携式眼压计测量时的体位（仰卧位与直立位）对眼压（IOP）的影响。
本研究共招募了 50 名平均年龄为 22.3±4.2 岁的大学生。使用非接触式眼压计 Keeler，Pulsair EasyEye 测量眼压。随机测量直立位和仰卧位的眼压。在直立位时，进行了 2 组 3 次测量（UP1 和 UP2）和 1 组 3 次仰卧位测量。
比较了 UP1 和 UP2 体位下的眼压值，以及直立位和仰卧位的眼压值。在直立位时，各组测量值之间没有统计学差异（P>0.05）。而当受试者处于仰卧位时，眼压增加了 2.47±2.12mmHg（均值±标准差），与直立位时的眼压值相比（P<0.001）。
本研究结果表明，仰卧位时眼压升高，且 Pulsair EasyEye 眼压计可在健康年轻人群中检测到这些变化。
