Posters

In vivo monochromatic ocular aberrations in Clareon IOL-implanted patients

Poster Details

First Author: M.Romero Insua SPAIN

Co Author(s):    C. Benedi-Garcia   M. Vinas   N. Alejandre   I. Jimenez-Alfaro   S. Marcos        

Abstract Details

Purpose:

The Clareon® IOL is an advanced monofocal IOL made from a new hydrophobic acrylic material featuring several bi-optics and bio-mechanical advances over the previous IOL materials. We studied the ocular aberrations and retinal image quality in a group of pseudophakic patients implanted with the Clareon IOL

Setting:

Fundación Jiménez-Díaz, Madrid; Visual Optics and Biophotonics Lab, Institute of Optics,  Consejo Superior de Investigaciones Científicas, Madrid, Spain

Methods:

Ten patients (Age: 59-78; Pre-operative Spherical Error: -1.25 to +3 D) were implanted with the Clareon IOL (IOL power: 19-23 D) following standard phacoemulsification. Ocular aberrations were measured >1 month after surgery using a custom-developed Hartmann-Shack wavefront sensor (wavelength: 700 nm; HASO, Imagine-Eyes). Pupils were dilated using 1% tropicamide and monitored on a pupil camera. Optical quality was expressed in terms of Root-Mean-Square (RMS) Wavefront Error, and individual Zernike coefficient, and Visual Strehl (VS). Data are given for 4.3-mm pupil diameters

Results:

All patients exhibited excellent optical quality post-operatively, comparable to that of young subjects, although there was a significant intersubject variability. Spherical error was within 0.25 D in 9/10 subjects. Cylindrical error decreased in 5/10 patients (-0.55 D on average), and remained unchanged in 4 patients. Post-operative astigmatism RMS for 3rd and higher order aberrations ranged from 0.07 to 0.31 um, 0.23 um on average. Spherical aberration ranged from -0.06 to +0.03 um (-0.008 um on average) and astigmatism from -0.3 to +0.1 um. Visual Strehl ranged from 0.84 to 0.32.

Conclusions:

Objective Hartmann-Shack measurements allowed characterization of the wave aberration in patients implanted with the Clareon IOL. The lens aspheric design achieves full correction of spherical aberration.  The absolute post-operative optical performance varies across individuals, likely due different corneal optics and some surgical factors.

Financial Disclosure:

... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented