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Updated: May 20, 2026

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Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
Published on: February 10, 2015
Usefulness of a semicircular capsulotomy marker
Hisaharu Suzuki1, Toshihiko Shiwa, Hideaki Oharazawa
1Department of Ophthalmology, Graduate School of Medicine, Nippon Medical School, Kawasaki, Kanagawa, Japan. s5054@nms.ac.jp
Summary
A new semicircular marker aids in creating precise continuous curvilinear capsulorrhexis (CCC) during cataract surgery. This tool helps achieve a consistent capsulotomy size, ensuring optimal intraocular lens placement.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Cataract Surgery
Background:
- Continuous curvilinear capsulorrhexis (CCC) is a critical step in cataract surgery.
- Achieving a precise and consistent CCC diameter is essential for proper intraocular lens (IOL) centration and visual outcomes.
- Current methods for CCC can be challenging, potentially leading to variations in capsulotomy size.
Purpose of the Study:
- To assess the efficacy and utility of a novel semicircular marker in guiding the creation of continuous curvilinear capsulorrhexis (CCC).
- To determine if the marker facilitates achieving a predetermined capsulotomy diameter during cataract surgery.
Main Methods:
- A newly designed semicircular marker with a 5.5 mm internal diameter was employed in 20 eyes undergoing cataract surgery.
- The marker was used to create a circular guide on the anterior lens capsule.
- Continuous curvilinear capsulorrhexis (CCC) was completed using the marked guide, with the final CCC size analyzed via video imaging.
Main Results:
- The average diameter of the continuous curvilinear capsulorrhexis (CCC) achieved was 5.2 ± 0.3 mm.
- In all cases, the anterior capsule edges completely covered the intraocular lens.
- The marker facilitated consistent CCC sizing, with minimal deviation from the intended diameter.
Conclusions:
- The semicircular capsulotomy marker proves to be a valuable tool for surgeons.
- It enables the creation of continuous curvilinear capsulorrhexis (CCC) with a defined and consistent diameter.
- This aids in achieving optimal surgical outcomes in cataract procedures.
