superior ophthalmic vein

n.
  1. A vein that begins from the nasofrontal vein, passes along the medial wall of the eye socket and through the orbital fissure, and empties into the cavernous sinus.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.