AIM: To compare the visual quality in patients after implantation of extended-range-of-vision(Tecnis Symfony)intraocular lens(IOL)and zonal refractive(Lentis Comfort LS-313 MF15)IOL.

METHODS: A prospective clinical study. Collecting 267 cataract patients(305 eyes)who underwent phacoemulsification combined with IOL implantation surgery in our hospital from January 2021 to December 2021,they were divided into the Symfony group(group A, 160 eyes)and MF15 group(group B, 145 eyes)according to the types of implanted IOL. Postoperative visual acuity were observed at 3mo and included uncorrected distance visual acuity(UDVA, 5m), uncorrected intermediate visual acuity(UIVA, 80 cm), uncorrected near visual acuity(UNVA, 40cm), defocus curve, modulation transfer function(MTF)and high-order aberrations(HOAs), including coma, spherical aberration and trefoil aberration, and conducted the Quality of Vision(QoV)questionnaire.

RESULTS: There were no significant differences in the preoperative parameters in both groups(P>0.05). There was no significant difference between the UDVA and UNVA in groups A and B(P>0.05); The UIVA was higher in group A than in group B(P<0.05); The MTF value in group A was higher than group B at all spatial frequency, and the difference was statistical significant(P<0.05); The HOAs in group A was lower than that in group B(P<0.05); Defocus curves were plotted 3mo after the operation suggest that the visual acuity of the two groups was similar at 0D, and the visual acuity of the groups A was better than group B from -0.5D to -2.5D, and there was a statistically significant difference at -1.0D and -2.0D(P<0.05). The QoV score in group A was significantly higher than that in group B(P<0.05). The frequency of bad visual interference such as halo and starburst was higher in group A than in group B.

CONCLUSION: Both the MF15 and Symfony can provide stable distance and near visual acuity. Compared with MF15, Symfony had better intermediate visual acuity, higher contrast sensitivity and lower HOAs. Compared with Symfony, MF15 IOL had less postoperative bad visual interference symptoms(halo, starburst, etc).