A comparative study of visual outcome of two extended depth of focus intraocular lenses after cataract surgery

Purpose The aim of this study was to compare the visual outcome of AcrySof IQ Vivity intraocular lens (IOL) and Tecnis Synergy IOL. Patients and methods This is a prospective controlled study that was performed on 40 eyes of 20 patients who were randomized into two groups (Vivity and Synergy groups), 20 eyes in each group. Uncorrected and corrected distance, intermediate, and near visual acuity, defocus curves, internal high-order aberrations, and modulation transfer functions were measured using iTrace aberrometer in both groups at 3 months after phacoemulsification. Results There was an improvement in the distance and intermediate visual acuity in both groups. However, the difference was statistically insignificant between the two groups ( P >0.05). On the other hand, the near visual acuity was significantly better in the Synergy group. Moreover, the visual acuity was maintained above 0.2 LogMAR from distance through near in the Synergy group, while in the Vivity group, the visual acuity was maintained at 0.1 LogMAR only in the range between 0.0 and −1.00 D with a sharp decline afterwards. The difference in the mean modulation transfer function and high-order aberrations between the two groups was statistically insignificant. Conclusion Both types of lenses demonstrated excellent distance and intermediate visual acuity. However, the near visual acuity was significantly better with the Synergy IOL. Nevertheless, both IOLs showed comparable quality of vision.