Clinical investigation of a monofocal intraocular lens with enhanced intermediate vision and a rotationally asymmetric multifocal intraocular lens with near addition of + 1.5 diopters

Abstract

Abstract Background: The Lentis® Comfort LS-313 MF15 (Oculentis, Berlin, Germany) is a latest-generation rotationally asymmetric multifocal intraocular lens (IOL) with a near-addition of +1.5 diopters. The newly developed monofocal lens Tecnis Eyhance™ DIB00V (Johnson & Johnson Vision, Santa Ana, CA, USA) provides favorable distance vision as well as an aspherical lens with increased power from the periphery to the center, plus strengthened intermediate vision. The purpose of this study was to compare the short-term postoperative visual functions of patients implanted with an Eyhance IOL with that of patients implanted with a Lentis IOL. Methods: We retrospectively studied 36 patients who had undergone cataract surgery with implantation of an Eyhance IOL (19 eyes in 19 patients) or a Lentis IOL (17 eyes in 17 patients). The following were evaluated at the 3-month post-operation clinic visit: the monocular uncorrected and corrected distance (5 m) visual acuity (UDVA and CDVA), the uncorrected and corrected intermediate (70 cm) visual acuity (UIVA, CDVA), additional plus diopter for intermediate vision (Add D) and the area under log contrast sensitivity function (AULCSF) under photopic with glare, photopic without glare, mesopic with glare, and mesopic without glare conditions. A defocus curve was made from each patient’s manifest refraction. Results: There were no significant post-operative differences in the UDVA, CDVA, UIVA, CIVA, or additional plus Dfor intermediate vision between the Eyhance and Lentis groups. The post-operative AULCSF for the mesopic with glare condition tended to be wider in the Eyhance group than the Lentis group while that for the mesopic without glare condition was significantly wider for the Eyhance group than the Lentis group. At the defocus level of -0.5D, visual acuity was significantly better maintained in the Eyhance group than the Lentis group, but at the defocus level of -3.0D, visual acuity was significantly better maintained in the Lentis group than the Eyhance group. Conclusion: Our analyses revealed that at 3 months post-operation the clinical outcomes of distance and intermediate visual acuity without correction were similar for patients with an implanted Eyhance IOL and those with a Lentis IOL.