Phaco chop revisited: Combo-chop combines horizontal and vertical chop techniques

When Dr. Nagahara introduced the phaco chop technique 25 years ago, it improved cataract surgery dramatically. Total ultrasound energy was reduced, surgery was more efficient, and safety improved. There did remain one challenge, however, and that is the steep learning curve for this technique. With direct mentoring, most of my resident ophthalmologists over the past two decades have been able to learn phaco chop and become adept with the technique. For an experienced surgeon, access to hands-on teaching is difficult, and most revert back to the divide-and-conquer technique that works

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