Visual Performance, Refractive Outcomes, And Patient Satisfaction After Implantation Of A Wavefront-Linking Presbyopia-Correcting Intraocular Lens

To evaluate visual performance, refractive outcomes, and patient-reported satisfaction following cataract surgery with a wavefront‑linking presbyopia‑correcting intraocular lens (IOL).

Ayrshire Eye Clinic, Ayr, Scotland, UK

This prospective interventional case series includes 143 eyes from 82 patients implanted with a wavefront‑linking IOL (ELON, Medicontur, Hungary) by a single surgeon (SS). Monocular and binocular uncorrected visual acuities at distance (UDVA), intermediate (UIVA, 66 cm), and near (UNVA, 40 cm) were assessed at 1, 3, 6 and 12 months postoperatively. Defocus curves for visual acuity were obtained at months 3, 6 and 12, and contrast sensitivity defocus curves were collected at months 6 and 12. Patient experience was evaluated with the VFQ‑25 questionnaire.

At 12 months, mean binocular uncorrected visual acuity measured −0.01 logMAR at distance, 0.08 logMAR at intermediate, and 0.21 logMAR at near. Binocular distance‑corrected visual acuities were −0.05, 0.05, and 0.17 logMAR for distance, intermediate, and near, respectively. The IOL provided a binocular photopic distance‑corrected depth of focus (at 0.2 logMAR threshold) extending from approximately 0.6 D to −2.2 D. Postoperative refraction showed that 89.4% of eyes achieved a spherical equivalent between −0.50 D and +0.50 D, and 74.1% were within ±0.50 D of astigmatic correction. VFQ‑25 responses indicated high satisfaction, with over 90% of patients reporting good functional vision for both distance and near activities.

The ELON wavefront‑linking IOL demonstrated stable refractive outcomes and consistent visual performance across all distances up to 12 months. Patient-reported outcomes reflected high levels of spectacle independence for distance and intermediate activities, along with a low incidence of visual disturbances on standardised visual function questionnaire assessment.