Comparative study of optical properties and visual quality of two diffractive multifocal intraocular lens / 眼科新进展

ABSTRACT

Objective To compare the optical properties and visual quality between Tecnis ZMB00 and AcrySof ReSTOR SN6AD1 multifocal intraocular lens (MIOL) in patients undergoing cataract surgery.Methods A total of 120 patients (130 eyes) who umderwent elective cataract surgery in our hospital from March 2012 to July 2015 were selected prospectively.All patients were treated with diffractive MIOL,and divided into group A (Tecnis ZMB00 group) and group B (AcrySof ReSTOR SN6AD1 group).The uncorrected distance visual acuity (UCDVA),uncorrected near visual acuity (UCNVA),uncorrected medium distance visual acuity (UCIVA),best corrected distance visual acuity (BCDVA) and best corrected near visual acuity (BCNVA) were measured before and after surgery.The defocusing curve was drawn for analysis of the contrast sensitivity,and the postoperative visual function and survival quality questionnaire (VF-14) was used to evaluate the postoperative visual quality.Results At 1 week,1 month and 3 months after surgery,recovery of UCNVA,UCIVA and BCNVA in group A was better than that in group B (all P ＜ 0.05).At 1 week and 3 months after surgery,the recovery of UCDVA in group A was better than that in group B (all P ＜ 0.05).At 3 months after surgery,the spherical equivalent was lower in group A than group B (P ＜ 0.05).The contrast sensitivities under scotopia,photopic glare and scotopic glare of different frequencies in group A were higher than those in group B (all P＜0.05).The VF-14 score in group A at 3 months after surgery was lower than that in group B (P＜0.05).In group A,0.0 D and-2.5 D formed 2 peaks,and from-2.0 D to-2.5 D formed the platform stage,while in group B,only 0.0 D and-3.0 D formed 2 peaks.Conclusion The implantation of Tecnis ZMB00 MIOL after cataract surgery can improve the uncorrected visual acuity of treated eye,contrast sensitivities,postoperative visual function and quality of life of patients.