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Trusted Surgical Brands

Capsular Tension Rings

Safer, less complicated surgery

Single –use capsular tension rings

Preloaded for ease-of-use

All CTRs are single-use and preloaded. They are used in cases of defective or partly-missing zonules, and also in potentially complicated surgical conditions, luxation of IOLs, zonulysis, pseudoexfoliation, and Marchesani syndrome. CTRs are also used to stabilize the capsule in cases of severe myopia.

Cionni rings

For scleral fixation

Cionni rings are CTRs with additional fixation eyelets, to allow the entire ring to be fixated permanently to the sclera with sutures. The suturing eyelets are positioned slightly anterior to the ring, allowing the ring to be placed into the capsular bag, while the eyelets remain anterior to the capsule. This configuration allows suturing of the ring to the scleral wall by means of the eyelet, without compromising the integrity of the capsular bag.

Capsular segments

For scleral fixation

Capsular segments were created for patients with extensive and/or progressive zonular loss. The partial PMMA ring segment traces a 120° arc with a radius of 4.5 or 5.0mm, and an anteriorly positioned fixation eyelet. Unlike CTRs, capsular segments can be used in cases where a discontinuous capsulorhexis, an anterior capsule tear or a posterior capsule tear, is present, as it does not generate a 360° expansile force. Multiple segments can be used, if necessary, but should be combined with a CTR or when circumferential support is required. Capsular segments may also be used for intraoperative support and removed prior to completion of the surgery.