虹膜拉钩在外伤性白内障伴晶状体不全脱位手术中的应用效果

目的评价虹膜拉钩辅助人工晶状体(IOL)单襻固定在外伤性白内障伴晶状体不全脱位手术中应用的效果。方法回顾性分析安庆市第二人民医院2013年2月至2019年11月外伤性白内障伴晶状体不全脱位14例(14眼)的临床资料。所有患者采用虹膜拉钩固定囊袋后,行超声乳化IOL囊袋内植入及单襻巩膜缝线固定术。术后随访6个月。观察术后视力,术中及术后并发症。结果术中玻璃体脱出者5眼(35.71%,5/14)。术后最佳矫正视力为0.2~0.8,其中≥0.5者10眼(71.43%,10/14)。有2眼发生后发性白内障。IOL均无明显偏位。结论应用虹膜拉钩固定囊袋,提高外伤性白内障伴晶状体不全脱位手术安全性。IOL单襻巩膜缝线固定可保持术后IOL的长期稳定。

Study on the Surface Modification of Hydrophobic Polyacrylate Intraocular Lens

In this study, the polyacrylate intraocularr lens is irradiated by argon ion which can produce free radicals. In order to obtain better hydrophilic and lower platelets adhesion, monomer vinyl pyrrolidone (NVP) is grafted onto the hydrophobic polyacrylate intraocular lens surface in a certain reaction conditions. Specific changes in intraocular lens are detected by static contact angle (CA), scanning electron microscope (SEM) and light transmittance. The results show that this surface modification can greatly improve its hydrophilic character and surface formation.