Dissociation between red and white stimulus perception: A perimetric quantification of protanopic color vision deficiencies.

ABSTRACT:

Significance

Horizontal visual field extension was assessed for red and white stimuli in subjects with protanopia using semi-automated kinetic perimetry. In contrast to a conventional anomaloscope, the "red/white dissociation ratio" (RWR) allows to describe protanopia numerically. For the majority of subjects with protanopia a restriction for faint red stimuli was found.

Purpose

Comparing the horizontal visual field extensions for red and white stimuli in subjects with protanopia and those with normal trichromacy and assessing the related intra-subject intra-session repeatability.

Methods

The subjects were divided into groups with protanopia and with normal trichromacy, based on color vision testing (HMC anomaloscope, Oculus, Wetzlar/FRG). Two stimulus characteristics

SUBMITTER: Wetzel D 

PROVIDER: S-EPMC8687589 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature