April 2007




Bimanual micro versus micro-coaxial


Published in the March issue of the Journal of Cataract and Refractive Surgery a comparaative study has found both bimanual micro-phacoemulsification and micro-coaxial phacoemulsification techniques to be safe and effective for cataract surgery.

Gian Maria Cavallini, M.D., Institute of Ophthalmology, University of Modena, Modena, Italy, and colleagues evaulated two phacoemulsification techniques to assess the potential advantages of bimanual micro-phacoemulsification over micro-coaxial phacoemulsification.

The controlled clinical trial involved 100 eyes of 50 patients with cortico-nuclear cataract of grade 2 to 4 on the Lens Opacities Classification System III. Through randomization, 50 eyes had surgery by the bimanual technique and 50 eyes had surgery by the micro-coaxial technique. Intraoperative parameters were mean phacoemulsification time, total phacoemulsification percentage, effective phacoemulsification time (EPT), total volume of balanced salt solution (BSS) used, total surgical time, and final size of the corneal incision. While postoperative parameters were visual acuity, astigmatism changes by vector analysis, corneal thickness, endothelial cell count, and presence of flare and cells in the anterior chamber.

Results showed no significant difference between the two techniques except that with bimanual microphacoemulsification, significantly less BSS was used and total surgical time was significantly shorter than with the coaxial method.

Source: Cavallini GM, Campi L, Masini C, et al. JCRS 2007; 33(3):387-392.

Reported by: EyeWorld News Service

Bimanual micro versus micro-coaxial Bimanual micro versus micro-coaxial
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