Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Hydrophobic IOLs



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Viñas Pérez, María and González Ramos, Ana María and Aisatti, Sara and Garzón Jiménez, Nuria and Poyales Galán, Francisco and Dorronsoro Díaz, Carlos and Marcos Celestino, Susana (2020) Longitudinal Chromatic Aberration in Patients Implanted With Trifocal Diffractive Hydrophobic IOLs. Journal of Refractive Surgery, 36 (12). pp. 804-810. ISSN 1081-597X

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Official URL: https://doi.org/10.3928/1081597X-20200930-01


PURPOSE: To measure the in vivo longitudinal chromatic aberration (LCA) from the chromatic difference of focus (480 to 700 nm) using psychophysical methods in patients bilaterally implanted with a hydrophobic trifocal intraocular lens (IOL).
METHODS: Psychophysical best focus was measured in both eyes at different wavelengths (480 to 700 nm) and at three different viewing distances (0.00, +1.75, and +3.50 diopters [D]) 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. Measurements were performed on 10 patients (20 eyes) bilaterally implanted with hydrophobic trifocal diffractive IOLs (FineVisionHP POD F GF; PhysIOL). LCA was computed from the chromatic difference of focus curves as the difference between 480 and 700 nm at near, intermediate, and far.
RESULTS:The LCA from psychophysical measurements was significantly higher for far vision (0.99 ± 0.06 diopters [D]), than for intermediate (0.67 ± 0.10 D) and near (0.23 ± 0.08 D) vision (one-way analysis of variance, P < .05).
CONCLUSIONS: 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 optical design but hydrophilic material IOLs. The LCA for the hydro-phobic IOL is slightly higher than for the hydrophilic IOL at far. Different combinations of refractive and diffractive LCA will allow optimizing IOL designs to improve polychromatic image quality.

Item Type:Article
Additional Information:

Received: March 25, 2020; Accepted: September 28, 2020

Uncontrolled Keywords:IOLs, Trifocal lens; Chromatic aberration; Trifocal diffractive lens; Hydrophobic IOLS,
Subjects:Medical sciences > Medicine > Surgery
Medical sciences > Medicine > Ophtalmology
Medical sciences > Optics > Optometry
Medical sciences > Optics > Visual perception
Medical sciences > Optics > Optical materials
ID Code:63451
Deposited On:04 Jan 2021 09:35
Last Modified:10 Dec 2021 23:00

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