Lateral section of the eyeball (Bulbus oculi). Regarding the anatomy, from left to right first the cornea, the ventral eye chamber, the iris, the eye lense with the associated supporting structures (grey), followed by the corpus vitreum, the retina, and finally the optic nerve can be seen. Furthermore, some providing vessels (veinsĀ =blue, arteries = red), as well as two eye muscles can be seen. Additionally, the layers of the sclera (outside) choroidea and retina are presented.