先天性晶状体半脱位手术治疗临床研究

Objective To compare the efficacy and safety of two surgical options in treating congenital subluxated lenses,one is capsular tension ring(CTR)and intraocular lens(IOL)implantation,and the other is IOL scleral fixation.Methods This study comprised 45 eyes of 27 congenital subuxated lenses patients,who were randomly divided into two groups.In Group 1(n=24 eyes),a CTR and IOL was implanted and in Group 2(n=21 eyes),a single-piece,scleral-fixated IOL.For group 1,CTR was sutured to sclera at a secondary surgery two months after CTR and IOL implantation.The postoperative visual acuities and best corrected visual acuities(BCVAs),astigmatism were analyzed.IOL tilt and decentration were measured with AC-OCT system and IOL post-photo system 3 months after surgery.Results Three months after surgery,Compared to group 2,group 1 had better BCVA(0.75 vs 0.54,P<0.05),lower astigrnatism(1.4D vs 2.3D,P<0.05).smaller IOL tilt(5.48°vs 7.37°,P<0.05).IOL decentration was 1.09mm in group 1 and 0.88mm in group 2 but without significant differences statistically (P>0.05).IOL pupillary capture occurred to 4 eyes of group 2.Conclusions Phacoemulsification with CTR and IOL implantation combined with secondary CTR scleral fixation iS a better surgical option for congenital subluxated lenses.

Surgical treatment of congenital subluxated lenses----a random controlled clinical trial