Fig. 67. Iridodialysis. The attachment between the peripheral iris and the face of the ciliary body is tenuous. Altered hydrostatic relationships may focus pressure on and disrupt this vulnerable area. A. The iris has ruptured near its insertion, exposing underlying ciliary body and dislocating and distorting the pupil. B. The force of the injury was sufficient to cause a traumatic cataract (c). The arrow indicates the site of the iridodialysis. The ciliary body connection with the scleral spur is not affected. C. This histologic section shows the hiatus of the peripheral iris, the traumatic cataract (with the cortex partially liquefied), and an intact ciliary body. (Hematoxylin-eosin stain; × 6.)