when the duration is such that regenerating optic fibres invade the denervated rostral half-tectum at about 40 days or longer after excision of the caudal tectum , the remaining half-tectum is able to accommodate incoming optic fibres not only from the appropriate temporal hemi-retina but also from the foreign nasal hemiretina in an orderly compressed topographic pattern .
C0015392
optic
C0035298
retina