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Unlike standard iris hooks that only engage the capsulorhexis margin, MST Capsule Retractors feature extended posterior tabs designed to reach the equator of the capsular bag. This provides improved intraoperative stability and support for eyes with compromised zonules.
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The retractors incorporate a looped distal end on the posterior tab, creating a broader area of contact with the capsule. This design helps distribute tension more evenly and minimizes the risk of capsule puncture during surgery.
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Constructed from double-banded nylon, the retractors provide enhanced lateral stability for smoother placement and improved handling throughout the procedure.
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The Chang Modification version features a closed-loop posterior tab design that reduces the risk of entanglement with capsular tension rings while maintaining broad capsule contact and easy insertion.
Its adjusted geometry allows the posterior portion of the retractor to remain parallel to the iris plane during retraction, helping prevent unwanted movement toward the incision site.

