Ocular Aberrations and Image Quality, Contact Lens and MYOPIA Progression

Shen, Jie

doi:10.5772/58456

Cited by 2 publications

(1 citation statement)

References 88 publications

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“…Due to the differences in the optical designs of multifocal contact lenses from different manufacturers, this limitation may prevent the findings to be extrapolated to contact lenses from other suppliers. Measurements of the neural contrast sensitivity function (NCSF) in the periphery that are reported in the literature are limited just to a few subjects or a few eccentricities 36,52 . This limitation occurs since such measurements are exhaustive and time consuming for the subject.…”

Section: Discussionmentioning

confidence: 99%

2-D Peripheral image quality metrics with different types of multifocal contact lenses

García

Wahl

Pusti

et al. 2019

Sci Rep

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To evaluate the impact of multifocal contact lens wear on the image quality metrics across the visual field in the context of eye growth and myopia control. Two-dimensional cross-correlation coefficients were estimated by comparing a reference image against the computed retinal images for every location. Retinal images were simulated based on the measured optical aberrations of the naked eye and a set of multifocal contact lenses (centre-near and centre-distance designs), and images were spatially filtered to match the resolution limit at each eccentricity. Value maps showing the reduction in the quality of the image through each optical condition were obtained by subtracting the optical image quality from the theoretical physiological limits. Results indicate that multifocal contact lenses degrade the image quality independently from their optical design, though this result depends on the type of analysis conducted. Analysis of the image quality across the visual field should not be oversimplified to a single number but split into regional and groups because it provides more insightful information and can avoid misinterpretation of the results. The decay of the image quality caused by the multifocal contacts alone, cannot explain the translation of peripheral defocus towards protection on myopia progression, and a different explanation needs to be found.

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Section: Discussionmentioning

confidence: 99%

2-D Peripheral image quality metrics with different types of multifocal contact lenses

García

Wahl

Pusti

et al. 2019

Sci Rep

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Fast rendering of central and peripheral human visual aberrations across the entire visual field with interactive personalization

Csoba,

Kunkli

2023

Vis Comput

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With the recent progress made in areas such as head-mounted displays and vision-correcting devices, there is a growing interest in fast and personalized algorithms for simulating aberrated human vision. Existing vision-simulating approaches are generally hindered by the lack of personalization, computational cost of rendering, and limited types of supported aberrations. This paper presents a fast vision simulation method with interactive personalization capabilities for simulating arbitrary central and peripheral aberrations of the human eye. First, we describe a novel, neural network-based solution for efficiently estimating the physical structure of the simulated eye and calculating the necessary Zernike aberration coefficients for computing the point-spread functions with varying pupil sizes, focus distances, and incidence angles. Our new approach operates in the sub-second regime and produces highly accurate outputs, facilitating the interactive personalization of vision simulation. Next, we present an improved PSF interpolation method for an existing tiled PSF splatting algorithm for rendering. The proposed algorithm significantly improves the computational performance and memory efficiency of the previous approach, allowing the simulation of peripheral vision with arbitrary visual aberrations in low-latency applications. Following the description of our new techniques, we evaluate their performance characteristics and simulation accuracies on several different eye conditions and test scenarios and compare our results to several previous vision simulation algorithms.

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Ocular Aberrations and Image Quality, Contact Lens and MYOPIA Progression

Cited by 2 publications

References 88 publications

2-D Peripheral image quality metrics with different types of multifocal contact lenses

2-D Peripheral image quality metrics with different types of multifocal contact lenses

Fast rendering of central and peripheral human visual aberrations across the entire visual field with interactive personalization

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