Defocus Curve Analysis Of Full Range Of Vision Iol With Spiral Optic Designed With Artificial Intelligence At 12 Months After Surgery.
Published 2026 - 44th Congress of the ESCRS
Reference: POCAT492 | Type: Free paper | DOI: 10.82333/10b6-jq63
Authors: Dr Andrea Llovet-Rausell* 1 , Dr Fernando Llovet 1 , A/Prof. Claudette Abela-Formanek 2 , Dr Alfonso Arias 3 , Mr Sanjay Mantry 4 , Dr Başak Bostancı 5 , Dr Kieren Darcy 6
1CLINICA BAVIERA,VALENCIA,Spain, 2Department of Ophthalmology and Optometry,Medical University of Vienna,Viena,Austria, 3Instituto Oftalmológico Vithas,Madrid,Spain, 4Vision Scotland,Edinburgh,Ireland, 5Suadiye Dünya Göz Hastanes,Istanbul,Türkiye, 6Vision Care Clinic,Bristol,United Kingdom
Purpose
This analysis aims to present the range of vision extension in clinical defocus curve analysis with a spiral non-diffractive full-range-of-vision intraocular lens (IOL). To our knowledge, this is the only analysis providing long-term defocus curve data with a 12-month follow-up.
Setting
Private Ophthalmology center (Clínica Baviera - AIER Group), Valencia, Spain.
Methods
Preoperatively, slit-lamp examination, keratometry, biometry, and subjective refraction were performed. Follow-up visits were scheduled for 1, 3, 6 and 12 months after surgery. Monocular and binocular corrected defocus curve measurements were performed in 0.5 D steps from +1.0 D to -4.0 D.
Results
At 12 months postoperatively, monocular (n = 93) and binocular (n = 24) corrected defocus curves showed a peak at 0 D (distance) with a mean visual acuity (VA) of -0.01±0.07 and -0.08±0.07 logMAR, respectively. At -1.5 D defocus (~66 cm), mean VA was 0.08±0.10 and -0.01±0.09 logMAR, respectively. At -3.0 D (~33 cm), mean VA was 0.31±0.14 and 0.17±0.11 logMAR, respectively. A VA of 0.2 logMAR or better was achieved from +1.50 D to -2.50 D monocularly and from +1.0 D to -3.0 D binocularly.
Conclusions
Monocular and binocular defocus curves showed stable patterns at 12 months. The binocular curve demonstrated a continuous full range of vision with a smooth plateau from +0.5 D to −3.0 D and VA of 0.2 logMAR or better across ~4.0 D, with slightly better intermediate and near outcomes. These findings suggest that the spiral-design full-range-of-vision IOL provides smooth and continuous vision from distance to near, supporting a high level of spectacle independence. This represents the first report of 12-month defocus curve data for this spiral non-diffractive platform.