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Osseous Anatomy of the Optic C anals. (Computed Tomography: Bone W indows with Reconstructions). Samuel Bidot, MD Amit M. Saindane , MD Valérie Biousse , MD. Optic canal seen through the orbit: frontal view. Optic canal. Superior orbital fissure. Inferior orbital fissure. - PowerPoint PPT Presentation
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Osseous Anatomy of the Optic Canals
Samuel Bidot, MD Amit M. Saindane, MD
Valérie Biousse, MD
(Computed Tomography: Bone Windows with Reconstructions)
Optic canal seen through the orbit: frontal view
Frontal bone
Nasal bone
Ethmoid bone Lacrimal bone
Sphenoid bone Maxillary bone
Zygomatic bone
Optic canal Superior orbital fissure
Inferior orbital fissure
Greater wing of the sphenoid
Lesser wing of the sphenoid
Body of the sphenoid
Jugum
Anterior clinoid process
Superior orbital fissures
Superior and inferior roots of the lesser
wing
Optic foramen
Optic canal seen from the intracranial side
Superior orbital fissure
Dorsum sella
Tuberculum sella
Chiasmatic groove
Optic foramen
Frontal bone
Cribriform plate
Lesser wing of the sphenoid
Greater wing of the sphenoid Body of the sphenoid
Sella turcica
Optic canal seen from the intracranial side
Optic canal : axial cut
Superior orbital fissure
Zygomatic bone
Greater wing of the sphenoid
Sphenoid sinuses
Anterior clinoid process
Optic canals
Tuberculum sella
Optic canal : oblique coronal cut
Lateral wall (inferior root of the sphenoid [strut])
Medial wall (body of the sphenoid)
Superior wall (superior root of the sphenoid)
Right optic canal
Ethmoid sinuse
Left orbit
Sphenoid sinus
Course of the optic canals: antero-lateral view
Maxillary bone
Ethmoid bone
Sphenoid bone
Nasal bone
Zygomatic bone
Lacrimal bone
Anterior clinoid process
(cut) Sphenoid
sinus Superior orbital fissure
Inferior orbital fissure
Dorsum sella Tuberculum
sella
Floor of the orbit
Optic canals
Course of the optic canals: postero-superior view
Greater wing of the sphenoid
Lesser wing of the sphenoid
Body of the sphenoid
Ethmoid bone
Sphenoid sinus
Inferior orbital fissures
Anterior clinoid process (cut)
Chiasmatic groove Tuberculum sella
Optic canals
Course of the optic nerves in the optic canals