Comparison of patients' vision and visual quality following refractive rotationally asymmetric mutifocal intraocular lens and diffractive multifocal intraocular lens implantation / 眼科新进展

ABSTRACT

Objective To compare the vision and visual quality after implantation of refractive rotationally asymmetric mutifocal IOL (SBL-3) and diffractive mutifocal IOL (Zeiss809) in cataract surgery.Methods Totally 80 patients (100 eyes) who underwent cataract surgery in our hospital from May 2016 to June 2017 were chosen in the research,followed by the implantation of SBL-3 in 39 patients (50 eyes,SBL group) and Zeiss809 in other 41 patients (50 eyes,Zeiss group).The gender,age,length of optic axis and corneal curvature between the both groups were not significantly different (all P ＞ 0.05) before surgery.Variables including far,middle and near uncorrected vision acuity,defocus curves,vision quality were observed 3 months after surgery.Objective scattering index (OSI),modulation transfer function cutoff frequency(MTFcutoff) and Strehl ratio (SR) were detected,and objective optical quality analysis system was conducted.Results Both groups has no ocular hypertension and complications after surgery.The far uncorrected vision acuity of both groups in 3 months after surgery showed significant statistic difference from preoperation (both P ＜ 0.01).There has no statistic difference between both groups in far and near uncorrected vision acuity 3 months after surgery (both P ＞0.05).SBL group showed better outcomes than that in Zeiss group in the middle uncorrected vision acuity 3 months after surgery (P =0.04).Defocus curves showed the better middle uncorrected vision acuity in SBL group than that in Zeiss group when the degree was-1.50 D (70 cm).The OSI,MTFcutoff and SR in both groups significantly improved after surgery when compared with before surgery (all P ＜0.05).And the OSI,MTFcutoff and SR 3 months after surgery had no statistic difference between the two groups (all P ＞ 0.05).Questionnaire results showed there were 3 patients in SBL group and 4 in Zeiss group complaining glare at night,and there was no statistic difference between the two groups (P ＞ 0.05).Conclusion Both refractive rotationally asymmetric mutifocal IOL and diffractive multifocal IOL shows satisfactory vision acuity after cataract surgery.Significant improvement of vision quality in both groups can be presented after IOL implantation.