5.25mm四区折射型双凸单片式PMMA多焦点人工晶状体的临床观察

Clinical application of CORNEAL Phac55 refractive multifocal intraocular lens

目的探讨5.25mm四区折射型双凸单片式PMMA多焦点人工晶状体在矫正白内障术后无晶状体眼屈光状态中的应用价值。方法选择年龄相关性白内障患者60例(60只眼),随机分为两组行超声乳化白内障吸除术联合人工晶状体植入术。单焦组30例(30只眼),术中植入CORNEAL Phac55型单焦点人工晶状体。多焦组30例(30只眼),术中植入CORNEAL DUAL525型多焦点人工晶状体。观察比较两组患者的术后视力、手术前后的角膜散光度数及主观视觉症状等。术后随访时间6.0～12.0个月。结果术后6个月多焦组的未矫正近视力为0.58±0.27,而单焦组为0.27±0.15,两组比较差异有显著意义(P＜0.01)；两组患者之间的未矫正远视力、最佳矫正近视力和手术前后的角膜散光度数比较,差异均无显著意义。两组均未出现不可耐受的主观症状。结论 5.25mm四区折射型双凸单片式PMMA多焦点人工晶状体植入安全、有效,可为患者提供良好的远近视力,降低了患者近距离工作时对凸透镜的需求。

Objective To study the results of using CORNEAL Phac55 refractive multifocal intraocular lens （MIOL） for the aphakic eye after phacoemulsification（phaco）. Methods The study comprised 60 randomly selected patients with age - related cataract from our hospital. After the phaeo, CORNEAL DUAL525 single - feeal intraoeular lens （SIOL） was implanted into 30 eyes of 30 patients （ SIOL group）, while CORNEAL Phae55 MIOL was implanted into 30 eyes of 30 patients （MIOL group）. Visual acuity, cerneal astigmatism and untoward visual symptoms were observed. Patients were being follow - up 6 to 12 months. Results The mean uncorrected near visual acuity was 0.58 ± 0.27 in the MIOL group and 0.27 ±0.15 in the SIOL group, and the significantly statistical difference was found between these two groups on 6 months after surgery（ P 〈 0.01）. There was no significantly statistical difference between the uncorrected distance visual acuity, corrected near visual acuity and corneal astigmatism of these two groups. None of the both groups bothered by the severely photie phenomena. Conclusion CORNEAL Phae55 MIOL implantation is a safe and effective method for the aphakie eye after the phaoo. MIOL has a distinct advantage in providing a full - distance visual acuity.