Comparison of bimanual and micro-coaxial phacoemulsification with torsional ultrasound
Article first published online: 16 FEB 2010
© 2010 The Authors. Acta Ophthalmologica © 2010 Acta Ophthalmologica Scandinavica Foundation
Volume 90, Issue 2, pages 184–187, March 2012
How to Cite
Wang, Y., Xia, Y., Liu, X., Zheng, D., Luo, L. and Liu, Y. (2012), Comparison of bimanual and micro-coaxial phacoemulsification with torsional ultrasound. Acta Ophthalmologica, 90: 184–187. doi: 10.1111/j.1755-3768.2009.01849.x
- Issue published online: 16 FEB 2010
- Article first published online: 16 FEB 2010
- Received on July 30th, 2009. Accepted on December 11th, 2009.
- bimanual phacoemulsification;
- cataract surgery;
- micro-coaxial phacoemulsification;
- torsional ultrasound
Purpose: To evaluate the efficacy and postoperative outcomes of bimanual and micro-coaxial phacoemulsification with torsional ultrasound.
Methods: In this prospective randomized series, eyes with age-related cataract were randomly divided into bimanual phacoemulsification and micro-coaxial phacoemulsification groups. Data included preoperative and postoperative corrected distance visual acuity (CDVA), central/temporal corneal thickness, endothelial cell density and intraoperative ultrasound time, cumulative dissipated energy and balanced salt solution volume.
Results: The study evaluated 89 patients (89 eyes). When compared between micro-coaxial and bimanual phaco groups, ultrasound time (57 ± 24 second versus 85 ± 40 second, p < 0.01), cumulative dissipated energy (10 ± 7 versus 14 ± 7, p = 0.01) and balanced salt solution volume (55 ± 19 ml l versus 75 ± 20 ml, p < 0.01) were significantly lower in micro-coaxial phaco group. At 1 day, there were no statistically significant differences in CDVA (p = 0.68) or central corneal thickness (p = 0.48) between two groups; temporal corneal thickness was statistically significantly thicker in bimanual phaco group (1247 ± 123 μm) than that in micro-coaxial phaco group (1108 ± 131 μm, p = 0.01). There were no statistically significant differences in CDVA, central/temporal corneal thickness, or endothelial cell density between two groups 30 days postoperatively (all p values >0.05).
Conclusion: With rapid visual rehabilitation and comparable endothelial cell loss, both bimanual and micro-coaxial phacoemulsification procedures with torsional ultrasound are efficient for moderate nuclear cataract extraction.