In addition to CSNB2, CACNA1F mutations are also known to cause X-linked Cone-Rod Dystrophy 3 (CORDX3) [91, 92], Åland Eye Disease [39, 93, 94], and even a progressive retinal/optic disc atrophy [95]. The gene discussed is CACNA1F; the disease is X-linked cone-rod dystrophy 3.