A Clinical Study On Reading Visual Acuity Of Acrysof ReSTOR Multifocal Lens

ObjectionTo determine and compare the reading visual acuity (RVA) and the visual outcomes after implantation of multifocal intraocular lenses (MIOL) and monofocal intraocular lenses (SIOL).MethodsIn this study,74 patients with age-related cataract (120 eyes) received phacoemulsification and MIOL/SIOL implantation respectively according to their own will. Sixty eyes were implanted with Alcon AcrySof ReSTOR SA60D3 (MIOL group), the other 60 eyes were implanted with Alcon AcrySof Natural SN60AT (SIOL group). Uncorrected distance visual acuity(UCDVA), best corrected distance visual acuity(BCDVA), uncorrected near visual acuity(UCNVA), best corrected near visual acuity(BCNVA), distant corrected near visual acuity(DCNVA),63 cm and 100cm intermediate visual acuity(IMVA), uncorrected reading visual acuity(UCRVA), near corrected reading visual acuity(NCRVA) and distant corrected reading visual acuity(DCRVA) were observed 3 months postoperatively.ResultsThere was no statistically significant difference between the 2 groups at UCDVA, BCDVA and BCNVA(P>0.05). MIOL eyes showed better UCNVA, DCNVA, IMVA, UCRVA and DCRVA than the SIOL eyes(P<0.05). There were linear correlations between UCNVA and UCRVA(r,=0.802), DCNVA and DCRVA(r2=0.816). Linear regression equation respectively:Y1=3.995+13.522X1(P<0.05), Y2=3.696+13.122X2 (P<0.05)(X1= UCNVA, Y1=UCRVA; X2= DCNVA, Y2= DCRVA).ConclusionsMIOL is effective and superiority. It can provide good distance visual acuity (DVA) as the SIOL does. Meanwhile, it can provide better UCNVA, DCNVA, IMVA, UCRVA and DCRVA. Good near visual acuity(NVA) is the basement of good RVA.