The optic chiasm is an important midline choice point where retinal ganglion cell (RGC) axons from each eye diverge to targets on both sides of the brain, setting up binocular vision. While several cues essential for guidance at the optic chiasm have been identified, it is clear other signals are required.
Bruce, F., Fuerst, P., Burgess, R., & Erskine, L. (2009). 13-P130 Expression of Dscam and Sidekick proteins at the developing mouse optic chiasm. Mechanisms of Development, 126(Suppl.), S234-S234. https://doi.org/10.1016/j.mod.2009.06.603