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Optical Design of Intraocular Lenses. III. On-Axis Performance in the Presence of Lens Displacement

Atchison, David A. (1989) Optical Design of Intraocular Lenses. III. On-Axis Performance in the Presence of Lens Displacement. Optometry and Vision Science, 66(10), pp. 671-681.

Abstract

The effect of intraocular lens shape on on-axis performance of model pseudophakic eyes was investigated, when lenses were displaced by tilting or decentration. Image quality criteria included an optimization procedure, spot diagrams, and the modulation transfer function (MTF). Displacement adversely affects image quality. With conventional lens shapes, the deterioration is either small or retinal image quality can be nearly restored to predisplacement levels by spectacle correction. Optimum lens shapes in the presence of decentration are close to being plano-convex, with the more curved surface facing the cornea. Based on the results of this and previous studies, it is suggested that preferred shapes of intraocular lenses range from this plano-convex form to equi-convex.

Impact and interest:

16 citations in Scopus
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ID Code: 4780
Item Type: Journal Article
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, lens decentration, lens tilt, modulation transfer function, optical design, pseudophakia, spherical aberration, spot diagram
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
Last Modified: 15 Jan 2009 17:09

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