Associated Retinal Consultants, Beaumont Eye Institute, Royal Oak, Michigan, USA.
Retina. 2011 Jun;31(6):1109-17. doi: 10.1097/IAE.0b013e31820b5b9b.
To determine if a difference in intraocular pressure (IOP) exists after small-gauge pars plana vitrectomy randomized to fluid versus 80% sterile air fill.
Ninety-two eyes undergoing 23-gauge and 25-gauge transconjunctival pars plana vitrectomy were randomized to fluid versus air fill, and IOP was measured at 5 different time points.
There is no difference in the mean IOP for eyes undergoing small-gauge pars plana vitrectomy randomized to fluid versus air fill after vitrectomy. Using 23-gauge instrumentation, the mean immediate and 2-hour postoperative IOPs were statistically lower than the mean preoperative IOP. The mean Postoperative Day 1 and Week 1 IOPs were statistically higher than the mean immediate postoperative IOP. Using 25-gauge instrumentation, the mean IOP was not statistically different at any time points in the 2 groups. When comparing 23-gauge with 25-gauge instrumentation, the immediate postoperative IOP was statistically lower and the rate of suture closure for sclerotomies was higher for 23-gauge vitrectomy.
When performing 23-gauge or 25-gauge pars plana vitrectomy, there was no difference in mean IOP for fluid- versus air-filled eyes. However, the mean IOP in the immediate postoperative period was statistically lower, and there was a higher rate of suture closure for 23-gauge compared with 25-gauge instrumentation.
确定在随机接受液体或 80%无菌空气填充的小切口巩膜平坦部玻璃体切除术后，眼内压（IOP）是否存在差异。
92 只接受 23G 和 25G 经结膜巩膜平坦部玻璃体切除术的眼睛被随机分为液体组和空气组，并在 5 个不同时间点测量 IOP。
在接受小切口巩膜平坦部玻璃体切除术后，随机接受液体或空气填充的眼睛之间，IOP 的平均值没有差异。使用 23G 器械，即时和术后 2 小时的平均IOP 统计学上低于术前平均IOP。术后第 1 天和第 1 周的平均 IOP 统计学上高于即时术后 IOP。使用 25G 器械，两组在任何时间点的 IOP 平均值均无统计学差异。比较 23G 和 25G 器械时，即时术后 IOP 统计学上较低，23G 玻璃体切除术后巩膜切口缝线闭合率较高。
在进行 23G 或 25G 巩膜平坦部玻璃体切除术后，液体填充眼和空气填充眼的平均 IOP 无差异。然而，即时术后期间的平均 IOP 统计学上较低，与 25G 器械相比，23G 器械的缝线闭合率较高。
