The optic chiasm is an X-shaped structure formed by the crossing of the optic nerves in the brain. The optic nerve connects the brain to the eye. To biologists, the optic chiasm is thought to be a ...

Optic nerve hypoplasia occurs when the optic nerve is underdeveloped. Learn more about this illness, including what to look for, what to expect, and more. Skip to main content ...

Bitemporal hemianopsia most commonly occurs as a result of tumors located at the mid-optic chiasm. Since the adjacent structure is the pituitary gland, some common tumors causing compression are ...

Decoding The Visual Pathway: Dr. Mandeep Singh Basu, Director of Dr. Basu Eye Hospital, examines the optic nerve's functions and how it connects our eyes to our brains.

Pituitary tumors affect the optic nerves primarily through physical compression. As the tumor grows, it may compress the optic chiasm, a critical structure directly above the pituitary gland.

Band optic atrophy is described as a horizontal band of optic disc pallor, often associated with a contralateral optic tract lesion and bilateral hemianopic visual field defects.

The functions of the cranial nerves are sensory, motor, or both. Sensory cranial nerves help a person see, smell, and hear. Motor cranial nerves help control muscle movements in the head and neck.

Specifically, a linear regression fit estimated the relationship between optic chiasm width (OCW) in millimeters in normal fetuses and gestational age (GA) in weeks as OCW = 0.11 × GA+2.0 (R^2 ...