KCNV2 and retinal disorder: Otherwise, as in the case of a dysfunctional KCNV2 gene, the absence/reduced function of the subunit Kv8.2 in the potassiumchannels, would shift and depolarize the resting potential of the cells, which might accountfor the pathognomonic ERG findings in KCNV2-retinopathy (9).