RAB28 mutations are associated with childhood-onset CORD18 (MIM# 615374), which manifest following reduced BCVA, dyschromatopsia, bull’s eye maculopathy, foveal hyperpigmentation, peripapillary atrophy, extinguished photopic ERG responses, and reduced scotopic ERG responses [30]. This evidence concerns the gene RAB28 and Bull's eye maculopathy.