Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Hydrophobic IOLs published in Journal of Refractive Surgery

The purpose of this study was to measure the in vivo longitudinal chromatic aberration (LCA) from the chromatic difference of focus using psychophysical methods in patients bilaterally implanted with a hydrophobic trifocal IOL. Psychophysical best focus was measured on 10 patients in both eyes at different wavelengths (480 to 700 nm) and at three different viewing distances using a custom-developed polychromatic adaptive optics set-up provided with a supercontinuum laser, a Hartmann-Shack wavefront sensor, a deformable mirror, a motorized Badal system, a pupil monitoring system, and a psychophysical channel with monochromatically illuminated stimuli. The article published in Journal of Refractive Surgery shows that LCA for far vision was significantly higher than for intermediate and near vision in hydrophobic trifocal diffractive IOLs, in agreement with a previous study with the same design but hydrophilic IOLs. Different combinations of refractive and diffractive LCA will allow optimizing IOL designs to improve polychromatic image quality.

Full reference: Maria Vinas, Ana Maria Gonzalez-Ramos, Sara Aissati, Nuria Garzón, Francisco Poyales, Carlos Dorronsoro, Susana Marcos. “Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Hydrophobic IOLs”. Journal of Refractive Surgery 36(12):804-810 (2020)

Full article here