Effects of transcranial direct current stimulation on threshold perimetry

Introduction: Several studies documented the effect of anodal and cathodal direct current stimulation over the occipital cortex (see Antal & Paulus 2008 for an overview). The measurement of contrast sensitivity changes after transcranial direct current stimulation (tDCS) using a standard clinical tool like threshold perimetry may provide an interesting perspective in assessing therapeutic effects of tDCS in neurological or ophthalmological patients. In this study, we aim to characterize the effect of anodal and cathodal direct current stimulation on contrast sensitivity in the central ten degree of the visual fi…