New technology for sizing the continuous curvilinear capsulorhexis: prospective trial

Area of Science:

• Ophthalmology
• Surgical Technology
• Medical Devices

Background:

• Cataract surgery requires precise continuous curvilinear capsulorhexis (CCC) for optimal outcomes.
• Variations in CCC size and shape can impact visual results.
• The data-injection ring system aims to enhance CCC accuracy by providing intraoperative guidance.

Purpose of the Study:

• To evaluate the accuracy of continuous curvilinear capsulorhexis (CCC) size and shape when using a data-injection ring system.
• To compare CCC deviations from a target size between eyes using the system and those without.

Main Methods:

• A randomized clinical trial involving 96 eyes undergoing cataract surgery.
• Eyes were assigned to either a data-injection ring system group or a control group.
• Intraoperative and postoperative CCC diameters were measured and compared to a 5.1 mm target size.

Main Results:

• No significant difference in mean CCC diameter between groups.
• The data-injection ring system group showed significantly less scatter around the target CCC diameter.
• Intraoperatively, 92% of eyes in the ring group had horizontal CCC within the normal range (4.9-5.3 mm) vs. 27% in the control group.

Conclusions:

• The data-injection ring system enhances CCC accuracy by reducing variability around the target size.
• Experienced surgeons benefit from this system for achieving more precise CCC diameters.
• The system shows potential for improving consistency in capsulorhexis creation.