Condon P I, Barrett G D, Kinsella M
Regional Eye Department, Waterford, Ireland.
J Cataract Refract Surg. 1989 Sep;15(5):495-503. doi: 10.1016/s0886-3350(89)80105-1.
Standard biconvex 12 mm diameter IOGEL PC-1 hydrogel intraocular lenses were inserted into the eyes of 55 patients using intercapsular in-the-bag placement and extracapsular ciliary sulcus placement. All patients had senile cataracts. Endothelial specular microscopic assessment was performed preoperatively and postoperatively at six and 12 months. Viscoelastic agents were not used in any of the cases and upper haptic positioning was achieved with dialing and irrigation and iris retraction in each group, respectively. Major complications in both groups were iridocapsular synechias. This resulted in dislocation of a single haptic into the anterior chamber angle in one ciliary-sulcus-placed lens and in an updrawn pupil in one of the intercapsular cases. Pigment dispersion syndrome occurred in one case with a ciliary-sulcus-placed lens. In one case in each group a Nd:YAG laser posterior capsulotomy was performed. Whereas the visual results in each group were similar, the percentage cell loss was significantly greater in the group with lenses in the ciliary sulcus at six months postoperatively. The lower cell loss in the intercapsular group was attributed to the protective effect of the anterior capsule on the endothelium during the major intraocular manipulations.
将直径12毫米的标准双凸面IOGEL PC - 1水凝胶人工晶状体采用囊袋内植入和囊外睫状沟植入的方式，植入55例患者眼中。所有患者均患有老年性白内障。术前以及术后6个月和12个月进行内皮细胞镜检查评估。所有病例均未使用粘弹剂，每组分别通过旋转、冲洗和虹膜后缩实现上襻定位。两组的主要并发症均为虹膜囊膜粘连。这导致1枚睫状沟植入的晶状体有1个襻脱入前房角，1例囊袋内植入病例出现瞳孔上移。1例睫状沟植入的晶状体发生色素播散综合征。每组各有1例进行了Nd:YAG激光后囊切开术。尽管每组的视觉结果相似，但术后6个月时，睫状沟植入晶状体组的内皮细胞丢失百分比显著更高。囊袋内植入组较低的细胞丢失归因于主要眼内操作过程中前囊膜对内皮细胞的保护作用。
