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Related Experiment Video

Updated: Jan 17, 2026

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Polychromatic Virtual Retinal Imaging of Two Extended-Depth-of-Focus Intraocular Lenses.

Damian Mendroch1, Stefan Altmeyer1, Uwe Oberheide1

  • 1Institute for Applied Optics and Electronics, TH Köln University of Applied Sciences, Cologne, North Rhine-Westphalia, Germany.

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Summary

This study used virtual retinal imaging to compare two extended-depth-of-focus (EDoF) intraocular lenses. The Bausch & Lomb LuxSmart offers greater depth-of-focus, while the Alcon IQ Vivity excels in low-light far vision.

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Area of Science:

  • Ophthalmic optics
  • Visual simulation
  • Optical engineering

Background:

  • Extended-depth-of-focus (EDoF) intraocular lenses (IOLs) aim to improve vision across multiple distances.
  • Characterizing IOL performance under various lighting and visual conditions is crucial for clinical application.

Purpose of the Study:

  • To characterize and compare the Alcon IQ Vivity and Bausch & Lomb LuxSmart EDoF intraocular lenses using virtual retinal imaging.
  • To evaluate IOL performance under simulated photopic and mesopic conditions, considering chromatic aberration.

Main Methods:

  • A custom Monte-Carlo Ray Tracer simulated light propagation through a mathematical eye model.
  • Virtual retinal images of resolution charts were generated under varying object distances and pupil sizes.
  • Performance was compared to a monofocal IOL, including dispersion and color effects.

Main Results:

  • Both EDoF lenses demonstrated superior intermediate vision acuity and reduced aberrations compared to monofocal IOLs.
  • The LuxSmart lens provided a greater depth-of-focus in both mesopic and photopic conditions.
  • The IQ Vivity lens showed minimal aberrations for far vision in mesopic conditions, beneficial for night driving.

Conclusions:

  • In silico evaluation is a valuable method for assessing IOL performance.
  • Characterizing IOLs under both photopic and mesopic conditions is essential.
  • Chromatic aberration and color vision significantly impact perceived visual quality.