A genetically heterogeneous group of neuronal ceroid lipofuscinoses (NCLs) typically characterized by onset at early school age with vision loss due to retinopathy, seizures and the decline of mental and motor capacities. The disease is juvenile neuronal ceroid lipofuscinosis (MONDO_0019262). Also known as: JNCL, Spielmeyer-Vogt disease, batten disease, juvenile NCL.