Related Experiment Video
Updated: Jul 5, 2026
Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
Published on: September 16, 2025
Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal
W Neil Charman1, Robert Montés-Micó, Hema Radhakrishnan
1Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom.
Purpose:
To determine the origin of the wavefront aberration as measured in eyes fitted with diffractive intraocular lenses (IOLs).
Methods:
Wavefront aberration was measured by Shack-Hartmann aberrometry in 2 eyes fitted with diffractive bifocal contact lenses and 10 eyes implanted with Acrysof ReSTOR multifocal IOLs.
Results:
Problems were encountered as a result of the multiple wavefronts generated by the diffractive lenses and their dependence on wavelength. These led to ambiguities in the positions of the Shack-Hartmann spot images and in the form of the derived wavefronts.
Conclusions:
Aberrometry may not provide reliable information on the wavefront aberration associated with either the distance or near power of diffractive IOLs.
