MORCHER Capsular Tension Rings (CTRs) stabilise weakened, broken or missing zonules, preventing IOL decentration after capsular shrinkage. Manufactured from one-piece PMMA, the CTR is an open-ring device with blunt tipped eyelets at either end. The CTR is designed to be implanted into the capsular bag and left permanently in place. It works by imparting a radial expansile force to the equator of the capsular bag. This force is equalised throughout the entire zonula-capsule apparatus, thereby transfering the tension from intact and normal zonules to those areas of zonular weakness or absence. By increasing overall bag stability, the risk of intraoperative complications is reduced. In addition, the tension imparted to the entire bag with a CTR decreases postoperative capsular contraction (phimosis) and improves IOL centration.

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