Fig. 19. Aqueous veins. Diagram of scleral collector channel (S) joining episcleral vein (V). Aqueous laminar flow occurs for a short distance prior to mixing of aqueous and blood. (From Kolker AE, Hetherington J Jr: Gonioscopic and microscopic anatomy of the angle of the anterior chamber of the eye. In Becker-Schaffer's Diagnosis and Therapy of the Glaucomas, 4th ed. St. Louis: Mosby-Year Book, 1976:21–41, with permission.)