A New Pentafocal Diffractive Multifocal Intraocular Lens Clinical And Optical Quality Outcomes
Published 2023 - 41st Congress of the ESCRS
Reference: FP24.10 | Type: Free paper | DOI: 10.82333/j0mz-9q84
Authors: Elinor Megiddo Barnir* 1 , Francisco Poyales 2 , Blanca Poyales Villamor 2 , Ana Belen Plaza Puche 3 , Lidia Pérez Sanz 2 , Leonor Herguedas Fenoy 2 , Ronald Sánchez Ávila 2 , Jorge L. Alio 4
1Cornea, Cataract and Refractive Surgery Unit, Vissum Grupo Miranza, Alicante, Spain,VISSUM,Alicante,Spain, 2Miranza IOA Madrid,Madrid,Spain, 3Research, Development and Innovation Department, Vissum Grupo Miranza,VISSUM,Alicante,Spain, 4Cornea, Cataract and Refractive Surgery Unit, Vissum Grupo Miranza, Alicante, Spain,VISSUM,Alicante,Spain;Department of Ophthalmology, Miguel Hernandez University,Alicante,Spain
Purpose
To evaluate the refractive outcomes and the optical performance as well as the quality of vision in patients implanted with a new diffractive multifocal intraocular lens (IOL), the Intensity Hanita IOL.
Setting
Prospective, clinical, single-arm, single-center, open label study in the Cornea, Cataract and Refractive Surgery Unit, VISSUM (Miranza Group), Miguel
Hernandez University, Alicante, Spain.
Methods
62 eyes of 31 patients were included. All patients underwent bilateral cataract surgery and were motivated to receive multifocal IOLs. All patients were implanted with the multifocal IOL Intensity (Hanita Israel) in both eyes. Visual acuities (VA); uncorrected distance VA (UDVA), corrected distance VA (CDVA), uncorrected intermediate VA (UIVA), distance corrected intermediate VA (DCIVA), uncorrected near VA (UNVA) and distance corrected near VA (DCNVA), refraction, slit lamp biomicroscopy, defocus curve (DFC), high order aberrations (HOA), contrast sensitivity (CS), optical quality, subjective quality of vision by quality of vision (QoV) and near activity visual questionnaire (NAVQ) questionnaires were assessed through follow up of 6 months
Results
High level of performance after surgery in UDVA, UIVA, DCIVA, UNVA & DCNVA (.10±.16, .12±.11, .09±.09, .12±.10, .12±.09 logMAR, respectively). The DFC showed maximum vision at distance (.02±.07 LogMAR at 0D), with flat decline through intermediate & near vision (.11±.08 LogMAR at -1.5D & .12±.12 at -2.5D, respectively). No significant changes in CS for all spatial frequencies (p≥.06). The RMS of HOA, coma, trefoil and SA was .22±1.0, .1±.06, .1±.06 & .00±.04 μm, respectively. As for the optical quality analyzed by pyramidal aberrometry of HOA, the PSF Strehl ratio was .12±.04 at 6 months. Subjective symptoms as halos & glare were reported mild but well tolerated. The NAVQ showed high levels of satisfaction performing daily near vision tasks
Conclusions
The Intensity multifocal IOL can successfully restore distance, intermediate and near visions in presbyopic patients after cataract surgery. The flat profile of the monocular defocus curve confirms the principle that the Intensity lens use 5 foci distribution that provides significant vision at all range, from near to infinity, without compromising far vision and while increasing the depth of focus.