Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal intraocular lenses

W. Neil Charman; Robert Montés-Micó; Hema Radhakrishnan

Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal intraocular lenses

W. Neil Charman, Robert Montés-Micó, Hema Radhakrishnan

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	280-286
Number of pages	6
Journal	Journal of Refractive Surgery
Volume	24
Issue number	3
Publication status	Published - Mar 2008

Keywords

Contact Lenses
Corneal Topography/*methods
Humans
*Lens Implantation, Intraocular
Lenses, Intraocular/*adverse effects
Prosthesis Design
Pseudophakia/physiopathology
Refractive Errors/*diagnosis/*etiology/physiopathology

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Cite this

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title = "Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal intraocular lenses",

abstract = "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.",

keywords = "Contact Lenses, Corneal Topography/*methods, Humans, *Lens Implantation, Intraocular, Lenses, Intraocular/*adverse effects, Prosthesis Design, Pseudophakia/physiopathology, Refractive Errors/*diagnosis/*etiology/physiopathology",

author = "Charman, {W. Neil} and Robert Mont{\'e}s-Mic{\'o} and Hema Radhakrishnan",

year = "2008",

month = mar,

language = "English",

volume = "24",

pages = "280--286",

journal = "Journal of Refractive Surgery",

issn = "1938-2391",

publisher = "Slack, Inc",

number = "3",

}

TY - JOUR

T1 - Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal intraocular lenses

AU - Charman, W. Neil

AU - Montés-Micó, Robert

AU - Radhakrishnan, Hema

PY - 2008/3

Y1 - 2008/3

N2 - 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.

AB - 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.

KW - Contact Lenses

KW - Corneal Topography/methods

KW - Humans

KW - Lens Implantation, Intraocular

KW - Lenses, Intraocular/adverse effects

KW - Prosthesis Design

KW - Pseudophakia/physiopathology

KW - Refractive Errors/diagnosis/etiology/physiopathology

M3 - Article

C2 - 18416263

SN - 1938-2391

VL - 24

SP - 280

EP - 286

JO - Journal of Refractive Surgery

JF - Journal of Refractive Surgery

IS - 3

ER -

Problems in the measurement of wavefront aberration for eyes implanted with diffractive bifocal and multifocal intraocular lenses

Abstract

Keywords

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