A ring to support the capsular bag after continuous curvilinear capsulorhexis

Area of Science:

• Ophthalmology
• Biomaterials Science
• Surgical Innovation

Background:

• Maintaining the integrity of the capsular bag after cataract surgery is essential for preventing complications and ensuring optimal visual outcomes.
• Continuous curvilinear capsulorhexis, a standard cataract surgery technique, can sometimes lead to capsular bag complications.
• Existing methods for capsular support may have limitations depending on the intraocular lens (IOL) used.

Purpose of the Study:

• To design and evaluate novel prototypes of a capsular bag supporting ring.
• To assess the ring's ability to preserve postoperative capsular bag integrity.
• To determine the compatibility of the ring with various capsular bag sizes and intraocular lens types.

Main Methods:

• Development of four distinct prototypes for a capsular bag supporting ring.
• Experimental insertion of an open poly(methyl methacrylate) ring into cadaver eyes via a 3.5 mm incision.
• In vitro assessment of the ring's fit, adjustability, and effect on capsular bag shape.

Main Results:

• The poly(methyl methacrylate) ring demonstrated good adjustability to diverse capsular bag sizes.
• The ring was successfully implanted with common intraocular lens types.
• Despite some in vitro capsular shrinkage, the equatorial roundness of the capsular bag was maintained.

Conclusions:

• The developed capsular bag supporting ring shows potential for preserving postoperative capsular bag integrity.
• The ring's design allows for versatile implantation with various IOLs and accommodates different capsular bag dimensions.
• Further research may validate the ring's efficacy in clinical settings to improve cataract surgery outcomes.