TRPV5 and Schnyder corneal dystrophy: Observations of this transport system in the ear have been limited to transcript expression in primary cultures of rat SCCD for all of the transport system genes [5], immunolocalization in mouse cochlea and vestibular labyrinth of TRPV5 and TRPV6 [6], and radiolabeled Ca2+ fluxes in primary cultures of rat SCCD [7].