ESCRS - PP05.02 - Optical Quality And Higher Order Aberrations Of Refractive Extended Depth Of Focus Iols

Optical Quality And Higher Order Aberrations Of Refractive Extended Depth Of Focus Iols

Published 2023 - 41st Congress of the ESCRS

Reference: PP05.02 | DOI: 10.82333/g38w-xq70

Authors: Isabella Diana Baur* 1 , Weijia Yan 2 , Gerd Auffarth 2 , Ramin Khoramnia 2 , Grzegorz Łabuz 2

1Department of Ophthalmology,Heidelberg University Clinic,Heidelberg,Germany;Department of Ophthalmology,Heidelberg University Clinic,Heidelberg,Germany, 2Department of Ophthalmology,Heidelberg University Clinic,Heidelberg,Germany

The aim of this study was to compare the optical quality and higher order aberrations of 4 different refractive extended depth of focus (EDoF) Intraocular lens (IOL) models (Lentis Comfort, MiniWell, LuxSmart and Vivity) and a monofocal IOL (Tecnis ZCB00).

Laboratory Investigation.

The laboratory’s optical bench (OptiSpheric IOL PRO2, Trioptics GmbH, Germany) was used to study image quality metrics of the different IOLs. The modulation transfer function (MTF) was measured at pupil sizes 1.0 mm to 5.0 mm in 1.0 mm steps. Simulated visual acuity was calculated as well as the modulation transfer function area (MTFa) for different pupil sizes. Wavefront aberrations were measured with the SHSOphthalmic device (Optocraft GmbH) which features a Hartmann-Shack sensor.

Simulated far visual acuity was 0.00 logMAR (20/20 Snellen) or better for all EDoF lenses. Compared to the monofocal IOL, the EDoF IOLs showed an increased depth of focus of at least 0.75 diopters at the 0.20 logMAR visual acuity level.

The MiniWell and Lentis IOL showed a more pronounced pupil dependency than the Vivity and LuxSmart. The wavefront measurement revealed increased central power for the MiniWell, LuxSmart and Vivity IOL compared to the monofocal control.

All EDoF IOLs maintained good simulated visual acuity at the far focus while increasing the depth of focus. Pupil dependency differed between the IOL models. The wavefront analysis revealed the complex design of the different EDoF IOLs with several zones of different power, leading to increased spherical aberrations in these IOL models.