Optical Design of Intraocular Lenses. II. Off-Axis Performance

Atchison, David A. (1989) Optical Design of Intraocular Lenses. II. Off-Axis Performance. Optometry and Vision Science, 66(9), pp. 579-590.

Abstract

The effect of intraocular lens shape on off-axis performance of model pseudophakic eyes was investigated. Image quality criteria included an optimization procedure, spot diagrams, and the modulation transfer function (MTF). The optimum lens shape varies with lens fitting position, corneal asphericity, and pupil size. An earlier investigation showed that the optimum lens shape for on-axis imagery is approximately plano-convex, with the more cured surface facing the cornea. In this investigation, optimum lens shapes for a 10° off-axis position ranged from near this shape to near the reversed shape, i.e., the more curved surface facing the retina. Because the on-axis case should carry more weight and because conditions favoring the reverse form include small pupils for which image quality is fairly insensitive to variations in lens shape, it is suggested that good forms for intraocular lenses range from plano-convex (curved surface facing cornea) to equi-convex.

Impact and interest:

17 citations in Scopus
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12 citations in Web of Science®

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ID Code: 4779
Item Type: Journal Article
Refereed: Yes
Additional Information: Self-archiving of the author-version is not yet supported by this publisher. For more information, please refer to the journal’s website (see link) or contact the author. Author contact details: d.atchison@qut.edu.au The contents of this journal can be freely accessed online via the journal’s web page (see link) 12 months after publication.
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Keywords: asphericity, intraocular lens, modulation transfer function, optical design, pseudophakia, spherical aberration, spot diagram, wave aberration
ISSN: 1538-9235
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1989 Lippincott Williams & Wilkins
Deposited On: 15 Aug 2006 00:00
Last Modified: 15 Jan 2009 07:09

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