The effects of blunt trauma on iris the blunt trauma by blow of the closed fist or sports-related injury impinges force on orbit. It creates concussion waves which push the iris lens diaphragm forwards and backward this is the pathophysiology of iris changes, so we can get:   Trauma mosis Traumatic mydriasis Iridodialysis Cyl dialysis Aniridia Sphincter rupture partial or total Anteflexion of iris Retroflection of iris Polyconic Trauma iris atrophy Heterochromia Trauma implantation cyst Weiss ring Share your views.