Description
The superior and inferior ophthalmic veins and the infraorbital vein are responsible for the venous drainage of the orbit, while the vorticose and central retinal veins drain the eyeball.
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Ophthalmic Vein
OVVs are rare orbital venous malformations, characterized by dilation of thin-walled veins and low blood flow, accounting for <1.3% of all orbital masses.
