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    Effects of Stimulus Luminance, Stimulus Color and Intra-Stimulus Color Contrast on Visual Field Mapping in Neurologically Impaired Adults Using Flicker Pupil Perimetry by Portengen BL, Porro GL, Bergsma D, Veldman EJ, Imhof SM, Naber M

    Published 2023-06-01
    “…Brendan L Portengen,1,2 Giorgio L Porro,1,* Douwe Bergsma,3 Evert J Veldman,4 Saskia M Imhof,1 Marnix Naber2,* 1Department of Ophthalmology, University Medical Center Utrecht, Utrecht, the Netherlands; 2Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, the Netherlands; 3HemianopsieStichting, Amersfoort, the Netherlands; 4Bartiméus Foundation, Zeist, the Netherlands*These authors contributed equally to this workCorrespondence: Brendan L Portengen, Department of Ophthalmology, University Medical Center Utrecht, PO Box 85500, Room E 03.136, Utrecht, 3508 GA, the Netherlands, Email b.l.portengen-2@umcutrecht.nlPurpose: We improve pupillary responses and diagnostic performance of flicker pupil perimetry through alterations in global and local color contrast and luminance contrast in adult patients suffering from visual field defects due to cerebral visual impairment (CVI).Methods: Two experiments were conducted on patients with CVI (Experiment 1: 19 subjects, age M and SD 57.9 ± 14.0; Experiment 2: 16 subjects, age M and SD 57.3 ± 14.7) suffering from absolute homonymous visual field (VF) defects. …”
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