Hugkulstone C E, Spencer A F, Vernon S A
Academic Unit of Ophthalmology, University Hospital, Nottingham.
Br J Ophthalmol. 1994 May;78(5):390-1. doi: 10.1136/bjo.78.5.390.
In an in vitro study, 10/0 nylon was found to require a significantly lower laser energy density to produce suture lysis following a single shot than either 10/0 Dacron or 10/0 prolene. Nylon and Dacron monofilament sutures ruptured at reproducible energy levels without significant observable changes at subthreshold irradiation. Prolene, however, was observed to stretch at energy levels below the lysis threshold, under the standard tension produced by a weight of 0.36 (SD 0.02) g. This feature may be of value when performing laser treatment to trabeculectomy flap sutures in the early postoperative period.
在一项体外研究中,发现10/0尼龙线单次照射后产生缝线溶解所需的激光能量密度明显低于10/0涤纶线或10/0聚丙烯线。尼龙和涤纶单丝缝线在可重复的能量水平下断裂,在亚阈值照射下无明显可见变化。然而,在0.36(标准差0.02)克重量产生的标准张力下,观察到聚丙烯线在低于溶解阈值的能量水平下会伸长。在术后早期对小梁切除瓣缝线进行激光治疗时,这一特性可能具有价值。