Short-wave sensitive ("blue") cone activation is an aggravating factor for visual snow symptoms

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.

www.frontiersin.org/articles/10.3389/fneur.2021.697923/abstract