adult optic lobe obsolete optic neuropil true Any synaptic neuropil domain that is part of the optic lobe. Obsoleted as part of the adoption of the Ito et al., 2014 standard (BrainName). We do not have any other terms for classifiying neuropils by partonomy. It is not much used in curation, and where it has been used, optic lobe would have sufficed. FBbt:00003707 fly_anatomy.ontology