A case of isolated posterior capsule rupture and traumatic cataract caused by blunt ocular trauma

Abstract

An isolated rupture of the posterior capsule that is caused by a blunt ocular trauma has been rarely reported and is usually detected incidentally during surgery for a complicated cataract. We found an isolated posterior capsule rupture on the third day after trauma in a 25-year-old man who was admitted for the treatment of traumatic hyphema and we performed a phacoemusification and anterior vitrectomy with PC-IOL, implantation because of the traumatic cataract which had progressed after the injury. The PC-IOL was implanted safely into the capsular bag without severe enlargement of the posterior capsular rupture. The break seems to function as a capsulotomy which provides a clear visual axis. We report this case with a review of the literatures.

Rupture of anterior lens capsule from blunt ocular injury

“…2 Although still rare, ruptures of the posterior lens capsule after blunt ocular trauma occur more frequently. [3][4][5][6][7][8][9] It is not clear why the posterior capsule is more susceptible to tearing in these situations, but it has been theorized that it is thinner and weaker than the anterior capsule 4,7 and adherence of Wieger's hyalocapsular ligament in younger patients causes the traumatic avulsion of the central posterior capsule. 3 We surmise that the anterior lens capsule may be torn by direct contusion from rapid focal indentation of the cornea on the lens (coup injury) (Figure 2, top) or by a fluid-mechanical, anteriorly directed rebound of the vitreous, bursting open the anterior capsule (contrecoup injury) (Figure 2, bottom).…”

Isolated Anterior Lens Capsule Rupture Secondary to Blunt Trauma: Pathophysiology and Treatment

“…6,7,8 Gampanella et al 9 stated that the mechanism of posterior capsule rupture due to blunt trauma involves the anatomic relationship between the vitreous and the lens interface. According to this theory, the Wiegert ligament, which connects the anterior cortical vitreous and the posterior lens capsule, usually attaches in the midperipheral region of the lens.…”

Künt Göz Travmasına Bağlı Lens Ön Kapsül Rüptürü ve Travmatik Katarakt

“…3,[7][8][9][10] However, there are few reports about rupture of the anterior lens capsule due to blunt ocular trauma in the literature. 3,4,8 On the other hand, rupture of the posterior lens capsule because of blunt ocular trauma is often seen.…”

“…Also, two reports of cases of rupture of the posterior lens capsule have been published. 10,12 All of these patients had blunt trauma to the eyeball.…”