PMID- 35942081 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231105 IS - 1177-5467 (Print) IS - 1177-5483 (Electronic) IS - 1177-5467 (Linking) VI - 16 DP - 2022 TI - Comparative Study of Safety Outcomes Following Nucleus Disassembly with and without the miLOOP Lens Fragmentation Device During Cataract Surgery. PG - 2391-2401 LID - 10.2147/OPTH.S370290 [doi] AB - PURPOSE: To determine the effect of a microinterventional lens prefragmentation wire loop device (miLOOP((R)); Carl Zeiss Meditec AG, Oberkochen, Germany), on adverse events (AEs), cumulative dispersed energy (CDE), and vision outcomes when used before phacoemulsification of high-grade mature cataracts. SETTING: Three ambulatory surgical centers in the Peoria, IL region. DESIGN: Retrospective comparative consecutive case series; single-surgeon. METHODS: Patient outcomes were compared before and after introduction of miLOOP-assisted lens fragmentation prior to phacoemulsification during cataract surgeries performed 2016‒2020. The primary outcome was intraoperative AE rate/type. Secondary outcomes included ultrasound cumulative dispersed energy (CDE) administered during phacoemulsification, postoperative AEs, and best-corrected visual acuity (BCVA). RESULTS: Data from 765 subjects (mean age 72.9 years; 1025 eyes) comprised 524 conventional lens disassembly (Control) eyes and 501 Device eyes. One hundred percent of the cataracts in both groups were advanced WHO Grade 3+ nuclei. Significantly fewer intraoperative AEs occurred in the Device group versus Controls (2.2% and 6.3% of eyes, respectively; p=0.0011). Postoperative AE rates were comparable between groups (Controls=2.9%, Device=3.5%). Mean CDE from ultrasound was significantly reduced by 21% when the microfilament loop device was used for nuclear disassembly (9.6+/-5.2 CDE units) versus Controls (11.6+/-6.4 CDE units; p<0.0001). Median postoperative BCVA was 20/25 Snellen (0.091 logMAR) in both groups. More than 70% of both Control and Device eyes had postoperative BCVA better than 20/30 Snellen. CONCLUSION: Microinterventional lens fragmentation was associated with lower ultrasound energy use and improved intraoperative safety than traditional unassisted surgery of advanced high-grade cataracts, while maintaining similarly acceptable postoperative complication rates and BCVA functional outcomes. CI - (c) 2022 Hu et al. FAU - Hu, Edward H AU - Hu EH AD - Wolfe Eye Clinic, Marshalltown, IA, USA. FAU - Buie, Therese AU - Buie T AD - Illinois Eye Center, Peoria, IL, USA. FAU - Jensen, Rishma J AU - Jensen RJ AD - Illinois Eye Center, Peoria, IL, USA. FAU - Wu, David AU - Wu D AUID- ORCID: 0000-0002-1763-9674 AD - University of Illinois at Chicago, Chicago, IL, USA. FAU - Pamnani, Ravinder D AU - Pamnani RD AD - Byers Center for Biodesign, Stanford University, Stanford, CA, USA. LA - eng PT - Journal Article DEP - 20220802 PL - New Zealand TA - Clin Ophthalmol JT - Clinical ophthalmology (Auckland, N.Z.) JID - 101321512 PMC - PMC9356701 OTO - NOTNLM OT - adverse events OT - cumulative dispersed energy OT - lens disassembly OT - microinterventional surgery OT - phacoemulsification cataract surgery OT - safety COIS- EHH reports grants from Zeiss, during the conduct of the study, and has received consulting fees from Carl Zeiss Meditec Cataract Technology, Inc. RDP reports personal fees from Carl Zeiss Meditec AG, during the conduct of the study; personal fees from Iantrek, Inc., outside the submitted work; and has received consulting fees from Carl Zeiss Meditec Cataract Technology, Inc. The authors report no other potential conflicts of interest in relation to this work, financial or otherwise. EDAT- 2022/08/10 06:00 MHDA- 2022/08/10 06:01 PMCR- 2022/08/02 CRDT- 2022/08/09 02:01 PHST- 2022/04/11 00:00 [received] PHST- 2022/07/15 00:00 [accepted] PHST- 2022/08/09 02:01 [entrez] PHST- 2022/08/10 06:00 [pubmed] PHST- 2022/08/10 06:01 [medline] PHST- 2022/08/02 00:00 [pmc-release] AID - 370290 [pii] AID - 10.2147/OPTH.S370290 [doi] PST - epublish SO - Clin Ophthalmol. 2022 Aug 2;16:2391-2401. doi: 10.2147/OPTH.S370290. eCollection 2022.