a site at the base of the forebrain where the inner half of the fibers of the left and right optic nerves cross to the opposite side of the brain.
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How to use optic chiasma in a sentence
Pressure on the optic chiasma, for example by a tumour of the pituitary body, is associated with bilateral temporal hemianopsia.Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition. | Alexander Miles
The optic chiasma, where present, is involved in the floor of the thalamencephalon and forms a large, upwardly-projecting ridge.