The optic thalamus is the principle object in the forebrain. It is a large ovoid mass of gray matter, which lies obliquely across the path of the crus cerebri as it ascends into the cerebrum.Shown is the two optic thalami as seen from above.

Optic Thalami

The optic thalamus is the principle object in the forebrain. It is a large ovoid mass of gray matter,…