The optic chiasm is the point at which two optic nerves connect immediately below the hypothalamus, and it is necessary for perception and vision.
The optic chiasm is the point where information from the right eye crosses over to the left and vice versa.
Both parts of the brain must work together to process information from each eye.
The optic tract then exits the chiasm, passing information.
The reorganized tract subsequently leaves the optic chiasm and enters the lateral geniculate nucleus, where data is divided, organized, and transmitted.