衍射型多焦点人工晶状体植入术后视功能的观察

目的:通过观察白内障超声乳化摘除联合ReSTOR衍射型多焦点人工晶状体植入术后患者的视力、受眩光、光晕干扰程度及老视镜脱镜率,评价衍射型多焦点人工晶状体眼的视觉质量。方法:将60例(68眼)年龄相关性白内障患者随机分为2组,分别行白内障超声乳化摘除并植入ReSTOR SA60D3衍射型多焦点人工晶状体(多焦组)和Natural SN60AT单焦点人工晶状体(单焦组),观察术后裸眼及最佳矫正远、近视力,受眩光、光晕干扰程度及阅读时戴镜情况。结果:两组患者术后裸眼远视力、最佳矫正远视力和最佳矫正近视力均无显著性差异(P>0.05)。多焦组术后裸眼近视力和最佳视远矫正时近视力明显优于单焦组(P<0.05),且近距离阅读时不需戴老视镜的患者多焦组22例(73.3%),而单焦组仅4例(13.3%),差异有统计学意义(P<0.05)。多焦组患者术后受眩光、光晕干扰较单焦组明显(P<0.05)。结论:ReSTOR衍射型多焦点人工晶状体能提供良好的远、近视力,有效降低患者对老视镜的依赖,提高了白内障患者术后的视觉质量。

The Observation of Visual Quality after the Implantation of Apodized Diffractive Multifocal Intraocular Lens

Objective: To obverse visual acuity, visual symptom and the rate of spectacle indepen-dence after implantation of a multifocal intraocular lens (MIOL) in patients with age-related cataract. Methods: Sixty patients (68 eyes) with age-related cataract were enrolled in two groups. ReSTOR SA60D3 MIOL and Natural SN60AT monofacal intraocular lens were specially implanted after phacoemulsification. Uncorrected distance visual acuity (UCDVA), best-corrected distance visual acuity(BCDVA), uncorrected near visual acuity(UCNVA), best-corrected near visual acuity(BCNVA), distance-corrected near vision acuity(DCNVA),visual symptom and the rate of spectacle independence were observed. Results: UCDVA and BCDVA in multifocal group were not statistically different from those in monofocal group (P > 0.05). UCNVA and DCNVA were statistically better in multifocal group than in monofocal group (P < 0.05).The multifocal group has higher rate of spectable independence than the monofocal group (73.3% versus 13.3%)(P < 0.05) when reading.The visual symptom such as glare and halo were more serious in multifocal group than in monofocal group (P < 0.05). Conclusions: Acrysof ReSTOR apodized diffractive multifocal intraocular lens may provide an excellent distance and near visual acuity, and decrease the dependence of spectacle.