Are Koniocellular Pathways Involved in Visual Snow Pathophysiology?

Visual Snow (VS) is a disorder characterised by the subjective perception of black-and-white visual static with at least one associated symptom of palinopsia, photopsia, nyctalopia and entoptic phenomena. The aetiology of this condition is not known. We have hypothesised that VS results from a thalamocortical dysrythmia of the visual system associated with the koniocellular pathways, which include cells that transmit short-wave (S-cone) signals for blue-yellow colour vision. This study aims to characterise the colour preferences of VS p atients in order to pursue this hypothesis further.