Capsular tension ring explant complication rate comparison using Miyake-Apple video analysis.

Area of Science:

• Ophthalmology
• Surgical Innovation
• Biomaterials Science

Background:

• Capsular tension rings (CTRs) are used to stabilize the capsular bag during cataract surgery.
• Standard CTRs can be challenging to explant, potentially leading to complications.
• There is a need for improved methods for CTR removal.

Purpose of the Study:

• To compare the complication rate and explantation time of standard CTRs versus suture-guided CTRs (SGCTRs).

Main Methods:

• An experimental study using cadaver eyes with induced zonular dialysis.
• Standard CTRs and SGCTRs were implanted, followed by simulated explantation.
• Explantation time and any complications were recorded.

Main Results:

• Standard CTR removal resulted in a 100% complication rate, including capsular tears and dialysis extension.
• SGCTR removal had no associated complications.
• Explantation time was significantly reduced from 164.5 seconds for standard CTRs to 6.9 seconds for SGCTRs.

Conclusions:

• Explanting standard CTRs from the capsular bag is associated with a high complication rate.
• Adding a suture to the CTR eyelet (SGCTR) significantly reduces explantation time and complication rates.