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View article: Stiles-Crawford Effect in Infrared Two-photon Vision
Stiles-Crawford Effect in Infrared Two-photon Vision Open
View article: Color vision with a two-photon infrared RGB display
Color vision with a two-photon infrared RGB display Open
Human vision is considered limited to the visible range (∼400–700 nm), yet studies have shown that near-infrared light can elicit visual perception through a nonlinear process known as two-photon vision. This occurs when two infrared photo…
View article: Roadmap on advances in visual and physiological optics
Roadmap on advances in visual and physiological optics Open
The field of visual and physiological optics is undergoing continuous significant advancements, driven by a deeper understanding of the human visual system and the development of cutting-edge optical technologies. This Roadmap, authored by…
View article: Seeing nonspectral colors with single wavelength stimulation in two-photon vision
Seeing nonspectral colors with single wavelength stimulation in two-photon vision Open
Pulsed near-infrared (NIR) lasers can be perceived as light of approximately half their wavelength due to the process of two-photon (2P) absorption. For high intensities of light, single-photon (1P) absorption can still be perceived beyond…
View article: In-Vitro Methods for Comprehensive IOL Optical Performance Assessment
In-Vitro Methods for Comprehensive IOL Optical Performance Assessment Open
This study introduces novel in-vitro methodologies for the optical assessment of intraocular lenses (IOLs), addressing the recognized gap between standard optical bench measurements and actual visual performance as experienced by patients.…
View article: Binocular adaptive optics visual simulator with convergence control
Binocular adaptive optics visual simulator with convergence control Open
We present a new generation of binocular adaptive optics visual simulator (B-AOVS). As in earlier versions, the system optimizes hardware use by managing both eyes with a single intensity spatial light modulator for pupil control and a sin…
View article: Optical correction in excised cataractous crystalline lenses by using wavefront shaping techniques
Optical correction in excised cataractous crystalline lenses by using wavefront shaping techniques Open
Cataracts significantly degrade retinal image quality by scattering light within the crystalline lens. In this work, we apply wavefront shaping techniques to optimize the point spread function (PSF) formed through excised human lenses at a…
View article: Eccentric Infrared Photorefraction: A Review of Evolution, Optical Design, Features and Applications
Eccentric Infrared Photorefraction: A Review of Evolution, Optical Design, Features and Applications Open
Photorefraction is seven-decade old technology that allows objective and non-invasive estimation of the eye’s refractive error using retro-illuminated photographs of the pupil. A special variant of this technique—eccentric infrared photore…
View article: Deep learning ocular aberration retrieval from simulated retinal images under straylight
Deep learning ocular aberration retrieval from simulated retinal images under straylight Open
The Point Spread Function (PSF) of the human eye is determined by both optical aberrations and straylight. However, accurately retrieving underlying wavefront aberrations from PSF images becomes challenging when straylight is present due t…
View article: A Review of Peripheral Refraction in Myopia Research
A Review of Peripheral Refraction in Myopia Research Open
Myopia has become a critical global public health issue, driven by the increasing prevalence of pathological myopia, which poses significant risks to visual health and leads to potential economic productivity losses. The theory of peripher…
View article: The influence of peripheral vision on driving performance in patients implanted with an inverted meniscus intraocular lens
The influence of peripheral vision on driving performance in patients implanted with an inverted meniscus intraocular lens Open
The purpose was to analyze and compare the influence of peripheral vision on driving while performing secondary visual-manual tasks in patients implanted with two types of intraocular lenses (IOLs): a standard monofocal IOL and a new inver…
View article: Welcome to the Journal of Bio-optics (JBiOp)
Welcome to the Journal of Bio-optics (JBiOp) Open
View article: Introduction to the Feature Issue “Improving Vision through Intraocular Lenses”: a tribute to Jim Schwiegerling
Introduction to the Feature Issue “Improving Vision through Intraocular Lenses”: a tribute to Jim Schwiegerling Open
Cataract surgery, a transformative procedure to restore vision, has seen remarkable advancements in intraocular lens (IOL) technologies. This special issue presents a collection of research that explores the performance, design, and evalua…
View article: Introduction to the feature Issue “Improving Vision through Intraocular Lenses”: a tribute to Jim Schwiegerling
Introduction to the feature Issue “Improving Vision through Intraocular Lenses”: a tribute to Jim Schwiegerling Open
Cataract surgery, a transformative procedure to restore vision, has seen remarkable advancements in intraocular lens (IOL) technologies. This special issue presents a collection of research that explores the performance, design, and evalua…
View article: Chromatic imaging properties of myopia-control spectacle lenses
Chromatic imaging properties of myopia-control spectacle lenses Open
Myopia progression in children can lead to ocular morbidity during adulthood. Spectacle lenses have been developed and commercialized for myopia control (MC), but their imaging properties have only been assessed under monochromatic illumin…
View article: VolRec: 4D real-time volumetric reconstruction of OCT data
VolRec: 4D real-time volumetric reconstruction of OCT data Open
This work presents the design, analysis and development of VolRec, a volumetric 4D reconstruction system for OCT (optical coherence tomography) data. VolRec is able to obtain and process more than 25 high-resolution OCT data volumes per se…
View article: Visual simulation of intraocular lenses: technologies and applications [Invited]
Visual simulation of intraocular lenses: technologies and applications [Invited] Open
Cataract surgery requires selecting an intraocular lens (IOL), whose design affects visual outcomes. Traditional IOL evaluation relies on optical models and bench testing, but these methods fall short in simulating perceptual factors cruci…
View article: Dynamic Accommodation Responses in Subjects Wearing Myopia Control Spectacles Modifying Peripheral Refraction
Dynamic Accommodation Responses in Subjects Wearing Myopia Control Spectacles Modifying Peripheral Refraction Open
No effect on accommodation responses was found in subjects wearing different types of myopia control lenses. This finding indicates that the induced changes in the ocular peripheral optics do not have an impact on accommodation.
View article: Depth of focus as a function of spherical aberration using adaptive optics in pseudophakic subjects.
Depth of focus as a function of spherical aberration using adaptive optics in pseudophakic subjects. Open
Purpose: To measure visual acuity at three different defocus planes in pseudophakic subjects with varying levels of spherical aberration induced by an adaptive optics visual simulator. The study aimed to simulate Extended Depth of Focus (E…
View article: Inducing cylindrical and spherical defocus after implantation with new generation intraocular lenses improves intermediate and near visual acuity
Inducing cylindrical and spherical defocus after implantation with new generation intraocular lenses improves intermediate and near visual acuity Open
An induced cylinder and spherical power after implantation with an extended depth of focus (EDOF) and enhanced monofocal intraocular lens (IOL) could improve distance, intermediate (60 cm) and near (40 cm) visual acuity (VA). In this prosp…
View article: Design concepts for advanced-technology intraocular lenses [Invited]
Design concepts for advanced-technology intraocular lenses [Invited] Open
An intraocular lens (IOL) replaces the natural crystalline lens during cataract surgery, and although the vast majority of implants have simple optics, “advanced technology” IOLs have multifocal and extended depth of focus (EDOF) propertie…
View article: Roadmap on Advances in Visual and Physiological Optics
Roadmap on Advances in Visual and Physiological Optics Open
The field of visual and physiological optics is undergoing continuous significant advancements, driven by a deeper understanding of the human visual system and the development of cutting-edge optical technologies. This Roadmap, authored by…
View article: Inverted meniscus IOLs reduce image shifts in the periphery compared to biconvex IOLs
Inverted meniscus IOLs reduce image shifts in the periphery compared to biconvex IOLs Open
Intraocular lenses (IOLs) are routinely used to replace cataractous crystalline lenses. Most current models have a biconvex design that reduces optical quality in the periphery since they are optimized only for central vision. Inverted men…
View article: Visually relevant on-bench through-focus analysis of intraocular lenses
Visually relevant on-bench through-focus analysis of intraocular lenses Open
Cataract surgery involves the implantation of an intraocular lens (IOL) to replace the opacified crystalline lens. Monofocal IOLs, the most common type, are intended to have the eye in focus at a given distance, usually at infinity. Simult…
View article: Impact of Genetic and Environmental Factors on Peripheral Refraction
Impact of Genetic and Environmental Factors on Peripheral Refraction Open
Understanding the impact of genetics and environment on peripheral refraction is essential for deepening our fundamental knowledge of myopia and guiding the development of advanced myopia control strategies.
View article: Ultra-wide-angle peripheral refraction using a laser-scanning instrument
Ultra-wide-angle peripheral refraction using a laser-scanning instrument Open
We compared the peripheral refractive measurements of a recently proposed laser-scanning instrument with an established peripheral refractor. Two-dimensional refractive maps were obtained using both instruments for 18 young subjects with d…
View article: Frequency-dependent effects of 0.05% atropine eyedrops on myopia progression and peripheral defocus: a prospective study
Frequency-dependent effects of 0.05% atropine eyedrops on myopia progression and peripheral defocus: a prospective study Open
Background Atropine, specifically 0.05% eyedrops, has proven effective in slowing myopia progression. This study aims to investigate peripheral refraction (PR) characteristics in myopic children treated with 0.05% atropine eyedrops at diff…
View article: Tear Film Hyperosmolarity is Associated with Increased Variation of Light Scatter Following Cataract Surgery
Tear Film Hyperosmolarity is Associated with Increased Variation of Light Scatter Following Cataract Surgery Open
Hyperosmolar patients exhibited significantly increased variation in light scatter following cataract surgery that was undifferentiated by staining or TBUT. Elevated osmolarity may be indicative of light scatter equivalent to that of a gra…
View article: Impact of Peripheral Refractive Errors in Mobility Performance
Impact of Peripheral Refractive Errors in Mobility Performance Open
In this laboratory-based study without an adaptation period, peripheral refractive errors affected stair negotiation, causing cautious behavior in subjects. Performance differences among types of peripheral defocus may result from magnific…
View article: Contrast sensitivity is resilient to induced fast periodic defocus oscillations
Contrast sensitivity is resilient to induced fast periodic defocus oscillations Open
This study investigates the potential effects of periodic defocus oscillations on contrast sensitivity. Sinusoidal fluctuations at 5, 15, and 25 Hz, with defocus peak-to-valley values ranging from 0.15 to 3 D, were induced by means of a fo…