optic canal
optic foramen

The building is well situated on the fiber optic canals that transmit phone calls and information under city streets.

The optic foramen is the opening to the optic canal.

The optic canal, which houses the nerves leading to the eyes, is narrow, suggesting that the eyes were small, similar to many other tenrecoids.

The left and right optic canals are 25mm apart posteriorly and 30mm apart anteriorly.

Tumors, infections, and inflammatory processes can cause lesions within the orbit and, less commonly, the optic canal.

The thicker sphenoid bone posteriorly usually prevents continuation of the fracture into the optic canal.

The feature exceptional of Styloichthys is the recessed teardrop-shaped eyestalk area behind the optic canal.

The main features of the lesser wing are the optic canal, the anterior clinoid process, and the superior orbital fissure.

The optic canal, a boney tunnel leading to the brain, surrounds the most posterior part of this optic nerve segment.

Because the posterior optic nerve passes through the optic canal, a boney tunnel leading to the brain, swelling in this inelastic space causes compression.

The Optic Nerve is a sensory (afferent) nerve responsible for vision; it runs from the eye through the optic canal in the skull and attaches to the diencephalon.

The optic nerve lies just above and outside the cavernous sinus, superior and lateral to the pituitary gland on each side, and enters the orbital apex via the optic canal.

The apex lies near the medial end of superior orbital fissure and contains the optic canal (containing the optic nerve and ophthalmic artery), which communicates with middle cranial fossa.

Based on the ratio of its orbit area to the size of its optic canal, Archaeoindris had low retinal summation, meaning its eyes were less sensitive to light (like living diurnal lemurs).

This has been demonstrated by the ratio between their relatively small orbits (eye sockets) and the relative size of their optic canal, which is comparable to that of other lemurs, not diurnal anthropoids.

The OA arises from the internal carotid along the medial side of the anterior clinoid process and runs anteriorly passing through the optic canal with and inferolaterally to the optic nerve.