Moorhead L C, Armeniades C D
Arch Ophthalmol. 1986 Feb;104(2):269-72. doi: 10.1001/archopht.1986.01050140127034.
True intraocular pressure (IOP) during closed-chamber anterior segment surgery and vitrectomy was measured in rabbits by inserting a miniature pressure sensor directly into the anterior chamber or into the vitreous. Infusion fluid pressure was also measured simultaneously with a sensor in the infusion line. Significant and rapid changes in IOP up to 110 mm Hg were observed during routine anterior segment and vitreous procedures. None of these IOP changes affected infusion line pressure, which was governed solely by the infusion bottle height. Furthermore, raising the infusion bottle produced minimal IOP elevation whenever fluid was flowing into and out of the eye via a surgical instrument or a wound. These results show the limitations of monitoring of infusion line pressure as a means for assessing IOP and stress the need for IOP control during surgery.
通过将微型压力传感器直接插入兔眼前房或玻璃体，测量了封闭腔前段手术和玻璃体切除术中的真实眼压（IOP）。同时，用输液管中的传感器测量输液流体压力。在常规前段和玻璃体手术过程中，观察到眼压显著且迅速变化，最高可达110 mmHg。这些眼压变化均未影响输液管压力，输液管压力仅由输液瓶高度决定。此外，只要液体通过手术器械或伤口进出眼睛，提高输液瓶高度只会使眼压略有升高。这些结果表明，将监测输液管压力作为评估眼压的一种手段存在局限性，并强调了手术中控制眼压的必要性。
