Where does superior ophthalmic vein drain?
cavernous sinus
The superior ophthalmic vein courses in the superior orbit from the anterior medial corner to the posterior lateral wall to enter the superior orbital fissure, where the vein drains into the cavernous sinus (Figure 2.67).
What foramen does the superior ophthalmic vein pass through?
optic canal.
Is superior ophthalmic vein valveless?
8 Similarly, orbital veins have been considered to be valveless, but a recent study demonstrated valves in the superior ophthalmic vein and its major facial tributaries, with valves oriented for blood flow back toward the cavernous sinus.
What are ophthalmic veins?
The ophthalmic veins are the two vessels that drain the venous blood from the structures of the orbit into the cavernous sinus. The anatomy of the ophthalmic veins is significant as these veins connect the anterior facial vein with the cavernous sinus.
Where does the superior ophthalmic vein drain into?
The superior ophthalmic vein originates in the superior inner angle of the orbital cavity and travels with the superior orbital artery to drain into the cavernous sinus (Figure 1). It is the vein responsible for most of the venous drainage of the orbit. Figure 2.
Can a superior ophthalmic vein be hyperdense?
Enlarged or tortuous superior ophthalmic veins may be seen in: Reversible bilateral enlargement of the superior ophthalmic veins is often seen in intubated patients 3. The superior ophthalmic veins may be hyperdense on CT due to thrombosis, including in cases of orbital cellulitis. 1. Cheung N, McNab AA. Venous anatomy of the orbit. Invest.
How is the diameter of the superior ophthalmic vein related to ICP?
Unilateral engorged superior ophthalmic veins (SOVs) have been noted to occur with carotid-cavernous fistulas ( 1 ), Graves disease ( 2 ), orbital pseudotumors, and retrocavernous meningiomas ( 3 ). Recently, a relationship between the diameter of the SOV and intracranial pressure (ICP) has also been reported ( 4 ).
Where is the superior ophthalmic vein located on CT?
Dr Craig Hacking ◉ ◈ et al. The superior ophthalmic vein is a prominent vein of the orbit that is seen on CT and may be enlarged or tortuous in various disease entities. The vein forms at the confluence of several veins within the superior orbit above the medial palpebral ligament: the angular, supratrochlear and supraorbital veins.
