Retinal Optical Image Quality And Visual Outcomes With A New Diffractive Multifocal Intraocular Lens Optimized By Dynamic Light Utilization Algorithm
Published 2024 - 42nd Congress of the ESCRS
Reference: FP25.09 | Type: Free paper | DOI: 10.82333/w6dm-2532
Authors: Ronald Steven Ii Seno Medalle* 1 , Jorge Luciano Alió 2 , Elinor Megiddo Barnir 3 , Ana Belen Plaza-Puche 4 , Antonio Martinez-Abad 4 , Pilar Yébana 4 , Ronald Sánchez-Ávila 5 , Blanca Poyales 5 , Francisco Poyales 5
1Cornea and Refractive Service,Associated Cebu Eye Specialists,Cebu,Philippines;Department of Ophthalmology,Cebu Institute of Medicine,Cebu,Philippines;Research, Development and Innovation Department,Vissum Grupo Miranza Alicante,Alicante,Spain, 2Department of Cornea and Refractive Surgery,Vissum Grupo Miranza Alicante,Alicante,Spain;Universidad Miguel Hernandez,Alicante,Spain, 3Research, Development and Innovation Department,Vissum Grupo Miranza Alicante,Alicante,Spain;Department of Ophthalmology,Sheba Tel Hashomer Medical Center,Ramat Gan,Israel, 4Research, Development and Innovation Department,Vissum Grupo Miranza Alicante,Alicante,Spain, 5Miranza IOA,Madrid,Spain
Purpose
Evaluate refractive outcomes, optical performance, and quality of vision in patients implanted with a new diffractive intraocular lens (IOL), the Intensity Hanita.
Setting
Cornea, Cataract, and Refractive Surgery Unit Vissum, Alicante Spain and Miranza IOA Madrid, Grupo Miranza, Spain.
Methods
This observational, prospective, longitudinal study included 62 eyes that had undergone bilateral cataract surgery with the Intensity IOL (Hanita Israel) implantation. Main outcome measures after 6 months were the following visual acuities (VAs) of uncorrected and corrected distance (UDVA and CDVA), uncorrected and distance corrected intermediate VAs (UIVA and DCIVA), uncorrected and distance corrected near (UNVA and DCNVA), refraction, slitlamp biomicroscopy, defocus curve (DFC), ocular aberrations (HOA), contrast sensitivity (CS), optical quality, subjective quality of vision (QoV) and near activity visual questionnaires (NAVQ).
Results
Significant improvement in UDVA, UIVA, DCIVA, UNVA & DCNVA (0.10±0.16, 0.12±0.11, 0.09±0.09, 0.12±0.10, 0.12±.09 logMAR, respectively) (p<0.05). DFC showed maximum vision at distance (0.02±0.07 LogMAR at 0.0D), with flat decline through intermediate and near vision (0.11±0.08 LogMAR at -1.5D & 0.12±0.12 at -2.5D). No significant changes in CS were found (all spatial frequencies, p≥.06). The RMS of HOA, coma, trefoil and SA were 0.21±0.10, 0.10±0.06, 0.11±0.07 & 0.00±0.04μm and the Strehl ratio was 0.12±.04 at 6 months. Subjective symptoms (halos and glare) were reported mild but well tolerated. NAVQ demonstrated elevated levels of satisfaction performing daily near vision tasks.
Conclusions
The Hanita Intensity diffractive IOL successfully restores all distances of vision. The flat profile of the monocular defocus curve confirms the 5 foci distribution principle that provides vision at all ranges while increasing the depth of focus.