Uncovering homonymous visual field defects in candidates for pediatric epilepsy surgery

Neumayr, Lisa; Pieper, Tom; Kudernatsch, Manfred; Trauzettel‐Klosinski, Susanne; Staudt, Martin

doi:10.1016/j.ejpn.2019.11.003

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…The participants consisted of 20 healthy children aged 3 to 11 years old (mean age and SD 7.2 ± 2.4, 14 male). The sample size was similar to prior studies in the field ( 1 ; 10 ; 24 ; 29 ). All children had normal or corrected-to-normal visual acuity and no history of visual or neurological disorders.…”

Section: Methodsmentioning

confidence: 94%

“…The Behavioural Visual Field screening (BEFIE) test ( 13 ) and SVOP ( 20 ) are examples of visual field tests, specifically developed with very young and neurologically impaired children in mind, that are tolerated better than conventional SAP methods. To illustrate, the BEFIE test managed to shorten time-to-diagnosis of visual field defects substantially in children suffering from brain disease ( 28 ) whereas SAP methods are generally performed unreliably in young children due to inability to cooperate, lack of comprehension, and psycho-motor impairment ( 24 ; 25 ; 26 ; 37 ). Despite these efforts with subjective and/or confrontational and behavioral perimetry tests, pupil perimetry in VR may even enhance the reliability as well.…”

Section: Discussionmentioning

confidence: 99%

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Maintaining fixation by children in a virtual reality version of pupil perimetry

Portengen

Naber

Jansen

et al. 2022

JEMR

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The assessment of visual field sensitivities in young children continues to be a challenge. Children often do not sit still, fail to fixate stimuli for longer durations, and have limited verbal capacity to report visibility. We investigated the use of a head-mounted VR display, gaze-contingent flicker pupil perimetry (gcFPP), and three fixation stimulus conditions to determine best practices for optimal fixation and pupil response quality. A total of twenty children (3-11y) passively fixated a dot, counted the repeated appearance of an animated character, and watched an animated movie in separate trials of 80s each. We presented large flickering patches at different eccentricities and angles in the periphery to evoke pupillary oscillations (20 locations, 4s per location). The results showed that gaze precision and accuracy did not differ significantly across the fixation conditions but pupil amplitudes were strongest for the dot and count task. We recommend the use of the fixation counting task for pupil perimetry because children enjoyed it the most and it achieved strongest pupil responses. The VR set-up appears to be an ideal apparatus for children to allow free range of movement, an engaging visual task, and reliable eye measurements.

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