Optic canal

Optic Canal

The Optic Canal is a cylindrical canal running obliquely through the lesser wing of the sphenoid bone to connect the orbit and the middle cranial fossa. It transmits the optic nerve and the ophthalmic artery.

Etymology[edit | edit source]

The term "Optic Canal" is derived from the Latin word "Opticus" meaning "of sight" and the Latin word "Canalis" meaning "channel".

Anatomy[edit | edit source]

The Optic Canal is located in the sphenoid bone, at the back of the orbit. It is approximately 1 cm long and begins at the apex of the orbit. The canal is directed backward and medially, and slightly upward. It is slightly constricted in the middle and is broader at each end.

Function[edit | edit source]

The primary function of the Optic Canal is to provide a pathway for the optic nerve and the ophthalmic artery. The optic nerve, which is responsible for transmitting visual information from the retina to the brain, passes through the Optic Canal. The ophthalmic artery, which supplies blood to the retina and other structures in the eye, also passes through the Optic Canal.

Clinical Significance[edit | edit source]

Any damage or obstruction to the Optic Canal can lead to vision problems. For example, a fracture in the sphenoid bone can cause damage to the optic nerve, leading to vision loss. Similarly, a tumor or aneurysm in the area can compress the optic nerve or ophthalmic artery, leading to vision problems.

Related Terms[edit | edit source]

See Also[edit | edit source]

Optic canal Resources
Need Help Finding a Doctor? Need help finding a doctor or specialist anywhere in the world? Explore our world directory. WikiMD's DocFinder can assist you in locating millions of physicians.	Medical Knowledge Access the latest research - Most recent articles Ongoing trials.