Neck of the inner nerve fibre capsule

Pars retrolentiformis capsulae internae

includes the mass of thread in the capsula interna sandwiched between the posterior pole of the lens core and the tail core. The wire mass is responsible for round-trip traffic between the cerebral cortex of the parietal and occipital lobes on the one hand and the thalamus on the other, threads from the cerebral cortex to nerve cells in the bridge (pons nuclei) and, well worth noting, the so-called visual radiation (radiatio optica) that runs between the outer knee body of the thalamus and the primary visual cortex.