Related Experiment Video
Updated: Jul 11, 2026
04:38
A Novel Technique of Rescuing Capsulorhexis Radial Tear-out using a Cystotome
Published on: January 16, 2011
Modified capsular tension ring for cortical removal after implantation
Bonnie An Henderson1, Jae Yong Kim
1Harvard Medical School, Boston, Massachusetts, USA. bahenderson@eyeboston.com
Journal of Cataract and Refractive Surgery
|September 25, 2007
Summary
A modified 14C Morcher capsular tension ring, the Henderson capsule tension ring (HCTR), features indentations to improve material removal during cataract surgery. This enhancement aims to maintain equal capsular bag expansion for better surgical outcomes.
Area of Science:
- Ophthalmology
- Medical Devices
- Surgical Innovation
Background:
- The original 14C Morcher capsular tension ring is a standard device in ophthalmic surgery.
- Maintaining capsular bag stability is crucial during cataract extraction.
Purpose of the Study:
- To introduce and describe a modified capsular tension ring, the Henderson capsule tension ring (HCTR).
- To highlight design modifications aimed at improving surgical efficiency and capsular bag support.
Main Methods:
- Modification of the original 14C Morcher capsular tension ring design.
- Incorporation of an open C-shaped loop made of poly(methyl methacrylate).
- Inclusion of 8 equally spaced indentations (0.15 mm) on the ring.
Main Results:
- The modified design, HCTR, facilitates easier removal of nuclear and cortical material.
- The indentations ensure maintained, equal expansion of the capsular bag.
- The device is currently undergoing U.S. Food and Drug Administration review.
Conclusions:
- The Henderson capsule tension ring (HCTR) represents a potential advancement in capsular tension ring technology.
- The design modifications may offer improved intraoperative efficiency and capsular support in cataract surgery.
