BACKGROUND/AIM The purpose of the present study was to evaluate clinical outcomes and optical performance of 4 different multifocal intraocular lenses (IOLs). MATERIALS AND METHODS Ninety eyes of 51 patients who received Reviol MFM 611, Reviol MFM 625, Acri.LISA, and ReSTOR SN6AD3 multifocal IOLs after cataract surgery were retrospectively evaluated. The patients were similar in terms of age,...

Presbyopia is becoming a global problem worldwide, leading to reduced quality of life due lack correction or hypocorrection in 94% people over 45. Multifocal soft contact lenses (MFCLs) are one the fastest growing methods for presbyopia. According report by our international colleagues, MFCLs represent 14% all types MCLs worldwide 2021, an increase 2% from 2020.In this article we will look at O...

PURPOSE   The aim was to assess visual performance after PureVision high addition multifocal contact lens (PM) fitting through contrast sensitivity measured under different illumination levels for both distance and near. METHODS   In a cross-over study, 20 presbyopic patients were randomly assigned to PM or spectacles. Near contrast sensitivity was measured with the Vistech VCTS 6500 system. ...

P. Tankam Laboratoire Hubert Curien (UMR 5516 CNRS), Université de Lyon, Université Jean-Monnet, 42000, Saint-Etienne, France T. Lépine [email protected] Laboratoire Hubert Curien (UMR 5516 CNRS), Université de Lyon, Université Jean-Monnet, 42000, Saint-Etienne, France Institut d’Optique Rhône-Alpes 18 rue Benoı̂t Lauras 42000, Saint-Etienne, France F. Castignoles Presbeasy, Lyon...

OBJECTIVE To present the theoretical and experimental characterization of the halo in multifocal intraocular lenses (MIOL). METHOD The origin of the halo in a MIOL is the overlaying of 2 or more images. Using geometrical optics, it can be demonstrated that the diameter of each halo depends on the addition of the lens (ΔP), the base power (P(d)), and the diameter of the IOL that contributes to...

Bifocal spectacle lenses have been used as a strategy to slow myopic progression in children since the 1950s and perhaps earlier. The reported success of this strategy varies greatly, as does the design of studies reporting the outcomes of their use-from earlier retrospective analysis of records to later prospective clinical trials. Collectively, published data support the suggestion that bifoc...

Purpose It has been proposed that the peripheral retina, responding to local optical defocus, contributes to myopia and associated altered eye growth in humans. To test this hypothesis, we measured the changes in central (on-axis) and peripheral ocular dimensions in guinea pigs wearing a concentric bifocal spectacle lens design with power restricted to the periphery. Methods Five groups of gu...