SLC25A46 and optic atrophy: Variants in SLC25A46 were first reported as disease causing in 2015 [1], and since then, several mutations in this gene have been pathologically linked to a range of neurological diseases such as optic atrophy, Leigh syndrome, axonal Charcot–Marie–Tooth disease, and lethal congenital pontocerebellar hypoplasia [1,5,8].