Check out the full article in Frontiers in Neurology:

Article/Study Title

“Short-Wave Sensitive (‘Blue’) Cone Activation Is an Aggravating Factor for Visual Snow Symptoms”


Jenny L. Hepschke, Paul R. Martin, and Clare L. Fraser


“Our results show that visual snow symptoms are exacerbated by colour modulation that selectively increased levels of S-cone excitation. Because S-cone signals travel on primordial brain pathways that regulate cortical rhythms (koniocellular pathways) we hypothesis that these pathways contribute to the pathogenesis of this disorder.”

Background & Purpose

“Visual Snow (VS) is a disorder characterised by the subjective perception of black-and-white visual static. The aetiology of this condition is not known. In our previous work we suggested that there is a link between short-wave (S or “blue” cone) signals and severity of visual snow symptoms. Therefore we aimed to further characterise this potential link.”

Click the link above to read more in Frontiers!

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“Ten years ago, in 2012, we presented work at a neurology meeting systematically describing why Visual Snow was not simply migraine aura and was a distinct disease entity. This was not received with universal acclaim, to say the least. In the intervening period, visual snow has come in from the medical ‘cold’ and is being studied actively by a number of groups on three continents. The recognition of the condition, broadening education, and funding research would not have happened were it not for the Visual Snow Initiative. I realize to the many with this often very disabling condition that it seems nothing has or is being done. Progress to treatment is never fast enough nor advances to recognition and understanding. With that said, visual snow research would be idling in a backwater where it not the Initiative. Going forward, we need to double, re-double, and re-double again our efforts for the search for effective treatments and, one day, a cure. Thank you for the Visual Snow Initiative for all you have done and continue to do.”

— Peter Goadsby, MD, PhD, DSc, Professor of Neurology, UCLA, Awarded 2021 Brain Prize

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