Additionally, SLC38A8 contributes to congenital nystagmus (Weiner et al., 2020), and RIMS1 and CABP4 are associated with dystrophy (Sisodiya et al., 2007) and synaptic disorder of cone-rod (Littink et al., 2009), respectively. Here, SLC38A8 is linked to congenital nystagmus.