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  • Title: Comparison of microcoaxial with standard clear corneal incisions in torsional handpiece cataract surgery.
    Author: Park YG, Chung SH, Joo CK.
    Journal: Ophthalmologica; 2012; 227(1):55-9. PubMed ID: 21832823.
    Abstract:
    AIM: To evaluate the effect of torsional handpiece incision size on phacodynamics and endothelial cell loss (ECL) in cataract surgery. DESIGN: Prospective, observer-masked study at the Department of Ophthalmology and Visual Science, Catholic University of Korea, Seoul St. Mary's Hospital, Seoul, Korea. PARTICIPANTS: This study was conducted on 60 eyes of 60 patients who underwent phacoemulsification. METHODS: Cataract surgery was performed on 28 eyes using a 0.9-mm micro 45-degree Kelman ABS (aspiration bypass system) tip through a 2.8-mm standard incision, and on 32 eyes using a 0.9-mm mini-flared 45-degree Kelman ABS tip through a 2.2-mm microcoaxial incision. As main outcome measures, intraoperative phacodynamics (cumulative dissipated energy, CDE, and balanced salt solution, BSS, use), central corneal thickness (CCT) and endothelial cell count (ECC) were investigated. RESULTS: The CDE was lower in the microcoaxial incision (2.2-mm) group than in the standard incision (2.8-mm) group (p = 0.038). The ECC loss at 6 months was significantly lower in the microcoaxial incision group than in the standard incision group (p = 0.048). There were no differences in BSS use or CCT between the two groups. CONCLUSIONS: Torsional ultrasound phacoemulsification using microcoaxial incision with a mini-flared tip resulted in less energy use and less ECL compared with standard incision with a micro tip.
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