Fig. 11. Morphology of anterior loop in human vitreous base. Central and peripheral vitreous structure in a 76-year-old man. The posterior aspect of the lens (L) is seen below. Fibers course anteroposteriorly in the central vitreous and insert at the vitreous base. The “anterior loop” configuration at the vitreous base is seen on the right side of the specimen (arrow). (Sebag J: The Vitreous--Structure, Function and Pathobiology. New York, Springer-Verlag, 1989)