Mittelviefhaus H
Universitäts-Augenklinik Freiburg.
Ophthalmologe. 1992 Aug;89(4):288-90.
Transscleral suture fixation of posterior chamber lenses is preferred to angle-supported anterior chamber lenses in cases of complicated cataract surgery with loss of the capsule. One of the disadvantages of suture fixation is the time needed to fix the suture to the haptic of the intraocular lens and to the sclera. Up to now it has been necessary for sutures to be tied separately to the haptic of the posterior chamber lens. With a modified one-piece PMMA posterior chamber lens, which has positioning holes at the vertex of the haptic (Morcher G 48), this is no longer necessary. Using a loop technique, it is possible for a specially designed single-arm loop suture (Ethicon X900G/STC-6) to be fixed safely to this new lens without any knots. Fixation of the sutures can thus be performed more easily and quickly, and there is no more danger of the suture slipping off the haptic. For the first time it has become possible to fix the sutures to the haptic without putting the intraocular lens down in the perioperative field. Reducing the manipulation time on the intraocular lens may also reduce the risk of intraoperative contamination.
在复杂白内障手术且晶状体囊膜缺失的情况下，后房型人工晶状体的经巩膜缝线固定术优于前房角支撑型前房型人工晶状体。缝线固定的缺点之一是将缝线固定到人工晶状体的襻以及巩膜所需的时间。到目前为止，缝线必须分别系到后房型人工晶状体的襻上。有了一种改良的一体式聚甲基丙烯酸甲酯后房型人工晶状体（在襻的顶点有定位孔，Morcher G 48），就不再需要这样做了。采用一种环扎技术，一种专门设计的单臂环扎缝线（Ethicon X900G/STC - 6）可以安全地固定到这种新晶状体上而无需打结。因此，缝线的固定可以更容易、更快速地进行，并且缝线从襻上滑落的风险也不再存在。首次可以在不将人工晶状体放置在围手术期术野中的情况下将缝线固定到襻上。减少在人工晶状体上的操作时间也可能降低术中污染的风险。
