Fig. 10. Vitreous attachments to ciliary body. A. Curved reflections (arrowheads) from the vitreous lamellae or “tracts” present in the otherwise invisible vitreous lying over the ciliary body. B. Diagram of “tracts” dividing the vitreous of the adult into several anteroposterior compartments. TP, preretinal tract; TM, median tract; TC, coronary tract; TH, hyaloid tract. (B, Eisner G: Clinical examination of the vitreous. Trans Ophthalmol Soc UK 95:360, 1975)