Presentation + Paper
3 October 2022 Through focus point spread function and modulus transfer function for multifocal lenses
Author Affiliations +
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.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paige Sawyers and Jim Schwiegerling "Through focus point spread function and modulus transfer function for multifocal lenses", Proc. SPIE 12217, Current Developments in Lens Design and Optical Engineering XXIII, 1221703 (3 October 2022); https://doi.org/10.1117/12.2632772
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KEYWORDS
Point spread functions

Modulation transfer functions

Eye models

Lenses

Cameras

Eye

Monochromatic aberrations

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