optic chiasma
noun
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.
optic chiasm
-
a variation of
optic chiasma.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Hazel has an optic chiasm pilocytic astrocytoma - a slow-growing tumour which presses on her optic nerve and affects her vision.
From BBC ● Jan. 19, 2026
The right medial retina then projects across the midline through the optic chiasm.
From Textbooks ● Jun. 19, 2013
Figure 16.8 Pituitary Tumor The pituitary gland is located in the sella turcica of the sphenoid bone within the cranial floor, placing it immediately inferior to the optic chiasm.
From Textbooks ● Jun. 19, 2013
In addition, a very small number of RGC axons project from the optic chiasm to the suprachiasmatic nucleus of the hypothalamus.
From Textbooks ● Jun. 19, 2013
The visual field is projected onto the two retinae, as described above, with sorting at the optic chiasm.
From Textbooks ● Jun. 19, 2013
