Benitez-Herreros Javier, Lopez-Guajardo Lorenzo, Camara-Gonzalez Cristina, Perez-Crespo Aurora, Silva-Mato Agustin, Teus Miguel A
Department of Ophthalmology, University hospital Príncipe de Asturias, Madrid, Spain.
Clin Ophthalmol. 2013;7:1471-6. doi: 10.2147/OPTH.S45875. Epub 2013 Jul 19.
To evaluate the influence of sclerotomy use during vitrectomy (vitreous cutter, illumination probe, or infusion-line entrance) on postoperative vitreous incarceration using an experimental model of vitrectomized eye.
Experimental, randomized, and observer-masked study in which 23-gauge transconjunctival sutureless vitrectomy was performed in cadaveric pig eyes. Postoperative incisional vitreous entrapment was evaluated by direct visualization. No vitreous incarceration was classified as grade 0 (G0), thin vitreous entrapment was classified as grade 1 (G1), and thick vitreous strands as grade 2 (G2).
A total of 46 eyes were included. Vitreous incarceration was detected in 91.3% (43.5% G1, 47.8% G2) of the sclerotomies used by the vitreous cutter probe, 95.7% (45.7% G1, 50% G2) of the illumination-pipe entrances, and 93.5% (45.7% G1, 47.8% G2) of the infusion-line incisions. No statistical differences were found when comparing incisional vitreous incarceration after vitrectomy according to sclerotomy use.
Different manipulation of the sclerotomies, depending on their use, does not seem to influence postvitrectomy vitreous entrapment in our experimental model.
使用玻璃体切除眼的实验模型，评估玻璃体切除术期间巩膜切开术的使用（玻璃体切割器、照明探头或输液管入口）对术后玻璃体嵌顿的影响。
在尸体猪眼中进行23G经结膜无缝线玻璃体切除术的实验性、随机和观察者盲法研究。通过直接观察评估术后切口玻璃体嵌顿情况。无玻璃体嵌顿被分类为0级（G0），薄玻璃体嵌顿被分类为1级（G1），厚玻璃体条索被分类为2级（G2）。
共纳入46只眼。在玻璃体切割器探头使用的巩膜切开术中，91.3%（43.5%为G1，47.8%为G2）检测到玻璃体嵌顿；在照明管入口处，95.7%（45.7%为G1，50%为G2）检测到玻璃体嵌顿；在输液管切口处，93.5%（45.7%为G1，47.8%为G2）检测到玻璃体嵌顿。根据巩膜切开术的使用情况比较玻璃体切除术后切口玻璃体嵌顿时，未发现统计学差异。
在我们的实验模型中，根据巩膜切开术的不同用途进行的不同操作似乎不会影响玻璃体切除术后的玻璃体嵌顿。
