The important role of Cav1.4 in the retina is evident from mutations in the CACNA1F gene encoding Cav1.4 LTCCs that cause retinal diseases in humans (OMIM 300,071, 300,476, 300,600) such as congenital stationary night blindness type 2 (CSNB2, OMIM 300,071; Table 1). Here, CACNA1F is linked to congenital stationary night blindness 2A.