Hashim, Hussein T. and Hashim, Hadeel T. (2026) MULTI-SYNTHETIC GEOMETRIC APERTURE CONFIGURATIONS FOR ENHANCED DEPTH-OF-FOCUS AND RETINAL IMAGE QUALITY IN INTRAOCULAR LENSES. Symmetria : Journal of Advanced Physics and Mathematical Review, 3 (4). ISSN 3066-3636

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Abstract

In this study, we propose a new pupil engineering strategy for multifocal intraocular lenses (MIOLs) which could overcome the optical limits of conventional lenses using a Multi-Synthetic Geometric Aperture—namely a Circular Synthetic Aperture (CSA)—to produce high quality near vision. A total of four aperture configurations were simulated using a validated human eye model in Zemax OpticStudio with diffractive MIOLs: (a) conventional single circular; (b) cloverleaf (quad-oval peripheral with central circular opening); (c) multi-ring circular array; and d) multi-concentric rings design. The metrics MTF, PSF, relative irradiance and RMS spot radius at field angles 0°,10° and 20° were calculated under polychromatic light (0.470–0.650 μm) to assess performance levels. Conventional aperture (RMS spot radius 21.749 μm) results show degradation off-axis, but CSA designs are shown to have improved aberration resilience. For the cloverleaf configuration and circular baseline, peak relative irradiances were 0.72 vs.49 with constructive interference and filtering of marginally aberrated rays. That design produced near constant MTF and contrast across wide fields of view, especially at higher spatial frequencies. In conclusion, these data suggest that CSA geometries may be an ideal design to reduce off-axis aberrations and improve optical performance in post-cataract patients.

Item Type:	Article
Uncontrolled Keywords:	Multi-Synthetic Geometric Aperture, Circular Synthetic Aperture, Multifocal Intraocular Lenses, Zemax OpticStudio, Pupil Engineering, MTF, PSF
Subjects:	H Social Sciences
Depositing User:	admin eprints
Date Deposited:	07 Sep 2026 07:58
Last Modified:	07 Sep 2026 07:58
URI:	http://eprints.umsida.ac.id/id/eprint/17050

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