Clinical and electroretinographic characteristics of congenital stationary night blindness in the Appaloosa and the association with the leopard complex

Abstract

CSNB was present in one-third of horses studied and there was a significant association between CSNB and the inheritance of two Lp alleles. ERG abnormalities support the hypothesis that CSNB is caused by a defect in neural transmission through the rod pathway involving the inner nuclear layer.