Vergence (optics)
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Digital eye strain: prevalence, measurement and amelioration Open
Digital device usage has increased substantially in recent years across all age groups, so that extensive daily use for both social and professional purposes is now normal. Digital eye strain (DES), also known as computer vision syndrome, …
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Soft, wireless periocular wearable electronics for real-time detection of eye vergence in a virtual reality toward mobile eye therapies Open
A device combining soft, wireless wearable electronics with virtual reality offers portable therapeutics for eye disorders.
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Visual problems associated with traumatic brain injury Open
Traumatic brain injury (TBI) and its associated concussion are major causes of disability and death. All ages can be affected but children, young adults and the elderly are particularly susceptible. A decline in mortality has resulted in m…
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High-resolution additive light field near-eye display by switchable Pancharatnam–Berry phase lenses Open
We correct a typo in the system parameter. The size of monocular eyebox is corrected to be 16mm (W) by 16mm (H).
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Accommodation and comfort in head-mounted displays Open
Head-mounted displays (HMDs) often cause discomfort and even nausea. Improving comfort is therefore one of the most significant challenges for the design of such systems. In this paper, we evaluate the effect of different HMD display confi…
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WISH: wavefront imaging sensor with high resolution Open
Wavefront sensing is the simultaneous measurement of the amplitude and phase of an incoming optical field. Traditional wavefront sensors such as Shack-Hartmann wavefront sensor (SHWFS) suffer from a fundamental tradeoff between spatial res…
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Effect of Intraocular Lens Tilt and Decentration on Visual Acuity, Dysphotopsia and Wavefront Aberrations Open
Tilt and decentration of intraocular lenses (IOL) may occur secondary to a complicated cataract surgery or following an uneventful phacoemulsification. Although up to 2–3° tilt and a 0.2–0.3 mm decentration are common and clinically unnoti…
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Beyond Feeling Sick: The Visual and Cognitive Aftereffects of Virtual Reality Open
Despite continued improvements in virtual reality (VR) technologies, many people still experience adverse symptoms from using head-mounted displays (HMDs). Typically, these symptoms are monitored through self-report measures, such as the S…
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Focal surface displays Open
Conventional binocular head-mounted displays (HMDs) vary the stimulus to vergence with the information in the picture, while the stimulus to accommodation remains fixed at the apparent distance of the display, as created by the viewing opt…
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Super multi-view near-eye display to solve vergence–accommodation conflict Open
A super multi-view (SMV) technique is applied to near-eye displays to solve the vergence-accommodation conflict that causes visual fatigue. The proposed SMV near-eye display employs a high-speed spatial light modulator (SLM), a two-dimensi…
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Mesozoic tectonic evolution of the Daba Shan Thrust Belt in the southern Qinling orogen, central China: Constraints from surface geology and reflection seismology Open
The Daba Shan Thrust Belt is located along the southern margin of the Qinling orogen that separates the north China block in the north from the south China block in the south. Despite decades of research, the total magnitude of shortening …
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Vergence anomalies in a sample of high school students in South Africa Open
The prevalence estimates for vergence anomalies in a sample of black high school students in South Africa were relatively low. Only study location and age influenced some vergence anomalies. Identification and referrals are important steps…
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Objective Assessment of Vergence after Treatment of Concussion-Related CI: A Pilot Study Open
Purpose To evaluate changes in objective measures of disparity vergence after office-based vision therapy (OBVT) for concussion-related convergence insufficiency (CI) and determine the feasibility of using this objective assessment as an o…
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Effects of prolonged continuous computer gaming on physical and ocular symptoms and binocular vision functions in young healthy individuals Open
Background and Objective Addiction to computer gaming has become a social problem in Korea and elsewhere, and it has been enlisted as a mental health disorder by the World Health Organization. Most studies related to computer use and visio…
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Binocular Eye Movements Are Adapted to the Natural Environment Open
Humans and many animals make frequent saccades requiring coordinated movements of the eyes. When landing on the new fixation point, the eyes must converge accurately or double images will be perceived. We asked whether the visual system us…
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Frequency of Visual Deficits in Children With Developmental Dyslexia Open
These findings suggest that deficits in visual function are far more prevalent in school-aged children with DD than in TD readers, but the possible cause and clinical relevance of these deficits are uncertain. Further study is needed to de…
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Fast gaze-contingent optimal decompositions for multifocal displays Open
As head-mounted displays (HMDs) commonly present a single, fixed-focus display plane, a conflict can be created between the vergence and accommodation responses of the viewer. Multifocal HMDs have long been investigated as a potential solu…
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Treatment of Symptomatic Convergence Insufficiency in Children Enrolled in the Convergence Insufficiency Treatment Trial–Attention & Reading Trial: A Randomized Clinical Trial Open
SIGNIFICANCE These data confirm the effectiveness of office-based vergence/accommodative therapy for improving convergence in children with symptomatic convergence insufficiency. They also highlight the importance of using a primary outcom…
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Mice Discriminate Stereoscopic Surfaces Without Fixating in Depth Open
Stereopsis is a ubiquitous feature of primate mammalian vision, but little is known about if and how rodents such as mice use stereoscopic vision. We used random dot stereograms to test for stereopsis in male and female mice, and they were…
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Evaluation of the SVOne Open
The results indicate that the SVOne handheld aberrometer provides measurements of refractive error in normal, young individuals that are not significantly different from other subjective and objective procedures. This instrument is valuabl…
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Clinical Validation of Eye Vergence as an Objective Marker for Diagnosis of ADHD in Children Open
Objective: ADHD youth show poor oculomotor control. Recent research shows that attention-related eye vergence is weak in ADHD children. Method: To validate vergence as a marker to classify ADHD, we assessed the modulation in the angle of v…
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Overlapping representations for reach depth and direction in caudal superior parietal lobule of macaques Open
Reaching movements in the real world have typically a direction and a depth component. Despite numerous behavioral studies, there is no consensus on whether reach coordinates are processed in separate or common visuomotor channels. Further…
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The Effect of the Vergence-Accommodation Conflict on Virtual Hand Pointing in Immersive Displays Open
Previous work hypothesized that for Virtual Reality (VR) and Augmented Reality (AR) displays a mismatch between disparities and optical focus cues, known as the vergence and accommodation conflict (VAC), affects depth perception and thus l…
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Vergence-accommodation conflict in optical see-through display: review and prospect Open
The optical see-through near-eye display finds wide applications in various areas such as medical treatment, education, tourism and entertainment. However, the vergence-accommodation conflict (VAC) is an obstacle in developing the optical …
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Towards a Switchable AR/VR Near-eye Display with Accommodation-Vergence and Eyeglass Prescription Support Open
In this paper, we present our novel design for switchable AR/VR near-eye displays which can help solve the vergence-accommodation-conflict issue. The principal idea is to time-multiplex virtual imagery and real-world imagery and use a tuna…
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DeepFocus Open
Addressing vergence-accommodation conflict in head-mounted displays (HMDs) requires resolving two interrelated problems. First, the hardware must support viewing sharp imagery over the full accommodation range of the user. Second, HMDs sho…
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Microstructural properties of the vertical occipital fasciculus explain the variability in human stereoacuity Open
Stereopsis is a fundamental visual function that has been studied extensively. However, it is not clear why depth discrimination (stereoacuity) varies more significantly among people than other modalities. Previous studies have reported th…
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Binocular vision alterations after refractive and cataract surgery: a review Open
To review binocular and accommodative disorders documented after corneal or intraocular refractive surgery, in normal healthy prepresbyopic patients. A bibliographic revision was performed; it included works published before 1st July 2017 …
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Investigation of the Relationship Between Subjective Symptoms of Visual Fatigue and Visual Functions Open
Purpose To investigate whether the severity of symptoms of visual fatigue might be associated with clinical visual measures and basic visual functions, such as accommodation, vergence, and contrast sensitivity. Methods In this study, 104 s…
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Gaze‐Matched Pupil Steering Maxwellian‐View Augmented Reality Display with Large Angle Diffractive Liquid Crystal Lenses Open
Maxwellian‐view structure exhibits several advantages in augmented reality (AR) displays, such as high efficiency, always‐in‐focus (no vergence‐accommodation conflict (VAC)), and simple optical structure. However, the bottleneck of Maxwell…