In-the-Bag Capsular Tension Ring and Intraocular Lens Subluxation or Dislocation

Visual outcomes in patients with zonular dialysis following cataract surgery

“…2 Zonular dialysis has been associated with a variety of adverse outcomes including early or late in-the-bag IOL dislocation, and progressive asymmetrical capsular contraction resulting in IOL decentration. 3,4 Capsule tension rings (CTRs) have been reported to compensate for weakened or damaged zonules in a number of ways, acting as a supportive device both intraand postoperatively, but have advantages and disadvantages. [4][5][6] The CTR can redistribute mechanical forces induced by nuclear sculpting or IOL insertion.…”

“…3,4 Capsule tension rings (CTRs) have been reported to compensate for weakened or damaged zonules in a number of ways, acting as a supportive device both intraand postoperatively, but have advantages and disadvantages. [4][5][6] The CTR can redistribute mechanical forces induced by nuclear sculpting or IOL insertion. 4 Similarly, the CTR induces centripetal pressure, reducing capsular folds, preventing forward movement of the posterior capsule, and thereby countering progressive contractile capsular forces post-operatively.…”

“…[4][5][6] The CTR can redistribute mechanical forces induced by nuclear sculpting or IOL insertion. 4 Similarly, the CTR induces centripetal pressure, reducing capsular folds, preventing forward movement of the posterior capsule, and thereby countering progressive contractile capsular forces post-operatively. 4,7 In contrast, compression is often required to implant the CTR, which itself may introduce further zonular damage.…”

“…4 Similarly, the CTR induces centripetal pressure, reducing capsular folds, preventing forward movement of the posterior capsule, and thereby countering progressive contractile capsular forces post-operatively. 4,7 In contrast, compression is often required to implant the CTR, which itself may introduce further zonular damage. 4,8 Furthermore, CTR may prevent full cortical aspiration by trapping the cortex within the capsular fornix.…”

“…4,7 In contrast, compression is often required to implant the CTR, which itself may introduce further zonular damage. 4,8 Furthermore, CTR may prevent full cortical aspiration by trapping the cortex within the capsular fornix. 4 Despite these findings, medium to long-term outcome data in the use of CTR are lacking.…”