label: ventral accessory optic nucleus
label_lc: ventral accessory optic nucleus
description: "Diencephalic nucleus that is part of the central pretectum and is ventromedial to the magnocellular superficial pretectal nucleus and the caudal pretectal nucleus. The ventral accessory optic nucleus is very large in zebrafish as compared to other cyprinids. From Neuroanatomy of the Zebrafish Brain."