Feasibility of Saccadic Vector Optokinetic PerimetryA Method of Automated Static Perimetry for Children Using Eye Tracking

Murray, Iain R.; Fleck, Brian; Brash, H. M.; MacRae, Mary; Tan, Lai Ling; Minns, Robert A.

doi:10.1016/j.ophtha.2009.03.015

Cited by 66 publications

(80 citation statements)

References 27 publications

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“…SVOP is stated as a technique that allows measurements in young children, where there is currently no satisfactory alternative perimetric assessment [7,19]. It brings together the advantage of a contactless perimetry, there is no need to use a buzzer, and the technique imitates the static perimetry testing procedure.…”

Section: Discussionmentioning

confidence: 99%

“…For functional analysis of visual field defects of hemianopic children younger than 7 years, Murray et al [7,19] introduced a new, child-friendly technique termed "saccadic vector optokinetic perimetry" (SVOP; i2eye-Diagnostics, Edinburgh, UK). SVOP is based on the principle of oculokinetic perimetry, which uses an eye tracker for measuring the eye position and eye movement for calculating the direction, amplitude, and latency of a subject's gaze response, thus avoiding major difficulties in visual field assessment in children [7,19].…”

mentioning

confidence: 99%

“…SVOP is based on the principle of oculokinetic perimetry, which uses an eye tracker for measuring the eye position and eye movement for calculating the direction, amplitude, and latency of a subject's gaze response, thus avoiding major difficulties in visual field assessment in children [7,19].…”

mentioning

confidence: 99%

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Structure-Function Correlation in Hemianopic Vision Loss in Children Aged 3-6 Years Using OCT and SVOP, and Comparison with Adult Eyes

Bowl

Knobloch²,

Schweinfurth³

et al. 2018

Ophthalmic Res

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Purpose: To correlate visual field assessment with saccadic vector optokinetic perimetry (SVOP) in children with ganglion cell loss due to anterior pathway pathologies resulting in hemianopic visual field defects measured with optical coherence tomography (OCT). Methods: 5 young (aged 3-6 years) and 5 adult patients with hemianopia, 10 healthy preschoolers (mean age 4.4 years), and 10 healthy adults (mean age 25.3 years) were tested with SVOP and OCT (focusing on the ganglion cell layer, GCL+). In adults, visual field testing was also performed with static and fundus-controlled perimetry. Results: OCT allowed precise structure analysis and showed a vertical border with GCL+ loss on the hemianopic side in children and adults compared to controls. SVOP showed visual field defects on the hemianopic side in peripheral regions and inadequate results at the parafoveal positions in both groups. In contrast, static and fundus-controlled perimetry showed a clear border in foveal and parafoveal regions. Conclusions: All children underwent SVOP with minimal restrictions, allowing functional evaluation of peripheral visual field positions. Parafoveal positions showed multiple false-positive results. The function-structure relationship is measurable even in young children by using the GCL+ analysis. This combination of novel child-friendly techniques allows collecting objectively measured values and simplifies diagnosis and follow-up in treatment.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Structure-Function Correlation in Hemianopic Vision Loss in Children Aged 3-6 Years Using OCT and SVOP, and Comparison with Adult Eyes

Bowl

Knobloch²,

Schweinfurth³

et al. 2018

Ophthalmic Res

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“…Eye tracking is the corresponding computer-aided research method to record and analyze this behavior. Eye-tracking is the process of measuring the point of gaze (the spot a participant is looking at), and an eye tracker is the portable hardware device that performs this measurement by measuring eye movement [37]. It is a method to assess the eye movement (as a dependent variable) in the anticipation of stimuli (as an independent variable) [38].…”

Section: Safety and Human Factormentioning

confidence: 99%

Advancing Safety by In-Depth Assessment of Workers Attention and Perception

Asadi¹,

Karan²,

Mohammadpour³

2017

IJSS

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Considering the complexity and sometimes unpredictability of human behavior, and its role on workplace injuries, it is surprising that psychological research has contributed relatively little in studying workplace safety compared to technology development. The focus of this paper is thus shifted to psychological investigation of human factors to understand how a hazard is perceived, how a seen hazard is recognized, and how a decision must be made to avoid the hazard. The study is conducted through a three-step experiment including a questionnaire, Balloon-Analogue-Risk-Task (BART) test and safety photos and video clips with an eye tracking system to measure and analyze the relationship between the worker's personality and perceptions of risks and hazards. A very close relationship was found between the length of time a participant spent looking at a hazard and the number of hazards identified correctly.Participants with a higher safety score were able to recognize more safety hazards than those with lower safety score. Moreover, it was found that risk-takers were underestimating a hazard, whereas more cautious and less risky participants were overestimating a hazard.

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“…Murray et al [7] defines eye-tracking as the process of measuring the point of gaze, and an eye tracker as a portable device that measures eye movement and eye positions. This technology can assess the user's mental state, exploring visual pattern and allowing the access to information that, otherwise, could not be accessible through any different approach.…”

Section: Applications Of Eye Tracking Technologymentioning

confidence: 99%

Eye-Tracking Technology for Construction Safety: A Feasibility Study

Pinheiro¹,

Pradhananga²,

Jianu³

et al. 2016

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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A construction site is a harsh environment demanding entire human senses and attention, even for regular scheduled tasks. Many accidents occur on construction sites because of inability of workers to identify hazards and make timely decisions. To understand why some hazards go unseen, it is crucial to study how workers perceive the site. The objective of this research is to leverage eye-tracking technology to study workers' gazing pattern in a construction environment. A real picture from an active construction site is modified to introduce hazards and a desktop experiment is conducted, in which, subjects are asked to identify the hazards. A different group of subjects are made to make similar observations on a 2D sketch-representation of the same construction scenario. Eye-tracking data gathered from their observations is analyzed to understand when, how, and which hazards do they recognize and the pattern of recognition is studied. The results of this study will enhance our understanding on the visual factors that govern attention and help workers recognize potential hazards in a construction site. The comparison between the observation pattern in real and sketch-representation is done to assess how subjects respond to artificial images compared to real images. This comparison will test the feasibility of using virtual reality for safety training and simulations.

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Feasibility of Saccadic Vector Optokinetic PerimetryA Method of Automated Static Perimetry for Children Using Eye Tracking

Cited by 66 publications

References 27 publications

Structure-Function Correlation in Hemianopic Vision Loss in Children Aged 3-6 Years Using OCT and SVOP, and Comparison with Adult Eyes

Structure-Function Correlation in Hemianopic Vision Loss in Children Aged 3-6 Years Using OCT and SVOP, and Comparison with Adult Eyes

Advancing Safety by In-Depth Assessment of Workers Attention and Perception

Eye-Tracking Technology for Construction Safety: A Feasibility Study

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