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.
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.
Authors: Arnaldo Dias-Santos; Lívio Costa; Vanessa Lemos; Rita Anjos; André Vicente; Joana Ferreira; João Paulo Cunha Journal: Int Ophthalmol Date: 2014-11-09 Impact factor: 2.031
Authors: Marcony R Santhiago; Marcelo V Netto; Jackson Barreto; Beatriz A F Gomes; Arthur Schaefer; Newton Kara-Junior Journal: Indian J Ophthalmol Date: 2010 Mar-Apr Impact factor: 1.848
Authors: Steven C Schallhorn; Jan A Venter; David Teenan; Julie M Schallhorn; Keith A Hettinger; Stephen J Hannan; Martina Pelouskova Journal: Clin Ophthalmol Date: 2016-04-27