Fig. 9. Transmission electron micrograph demonstrates the appearance of capillaries in the ciliary body stroma. Numerous fenestrations (arrowheads) are evident along the circumference of the vessel wall. (From Morrison JC, Van Buskirk EM, Freddo T. Anatomy, microcirculation and ultrastructure of the ciliary body. In: Ritch R, Shields MB, Krupin T (eds). The Glaucomas. St Louis: CV Mosby, 1989.)