Third cell layer Middle cell layer Rods and cones 上游充通大学 Shanghai Jiao Tong University Visual cortex Optic nerve VISION Lateral geniculate nucleus Optic chiasm一 Comea Optic nerve Right visual field Left visual field Brain Facts A Primer on the brai n and nervous systemShanghai Jiao Tong University VISION Brain Facts A Primer on the brai n and nervous system