Through focus point spread function and modulus transfer function for multifocal lenses

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Author
Sawyers, P.
Schwiegerling, J.
Affiliation
James C. Wyant College of Optical Sciences, University of Arizona
Issue Date
2022
Keywords
image processing
Intraocular lenses
modulation transfer function
multifocal lenses

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Publisher
SPIE
Citation
Sawyers, P., & Schwiegerling, J. (2022). Through focus point spread function and modulus transfer function for multifocal lenses. Proceedings of SPIE - The International Society for Optical Engineering, 12217.
Journal
Proceedings of SPIE - The International Society for Optical Engineering
Rights
Copyright © 2022 SPIE.
Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
Abstract
A system for measuring the through-focus point spread function (PSF) for intra-ocular lenses (IOLs) and converting to modulation transfer function (MTF) is developed. The system consists of a light source, eye model, IOL, magnifier, and CCD camera. By capturing the resulting image through a range of focus positions, the PSF is found and converted to MTF. The MTF displays differences in the depth of focus for monofocal, multifocal, and extended depth of focus (EDOF) IOLs. As multifocal and EDOF IOLs evolve, using the MTF to predict the image quality is vital to implanting the most appropriate lens in the patient's eyes. © 2022 SPIE. All rights reserved.
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Immediate access
ISSN
0277-786X
ISBN
9781510654181
DOI
10.1117/12.2632772
Version
Final published version
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