part of expresses Optix larval outer optic anlage Optix-expressing compartment of the outer optic anlage 2018-07-18T14:46:26Z fly_anatomy.ontology FBbt:00047465 VFB:FBbt_00047465 Subset of the neuroepithelium of the larval outer optic anlage that expresses Optix. There are two symmetrical regions per outer optic anlage, distinct from the regions that express Vsx1. Neurons of the Optix-expressing lineage form much of the medulla and part of the lamina. Cells from this compartment do not migrate across the clearly-defined regional boundaries. larval optic lobe compartment compartment