For a resident surgeon, mastering the divide-and-conquer technique is a rite of passage, representing the transition from tentative maneuvers to controlled, predictable surgery. By sculpting two deep grooves to create a stable cross-shaped trench, the resident learns the delicate physics of cracking the nucleus into four manageable quadrants. This methodical approach builds the essential muscle memory for phacoemulsification power settings and fluidics management. However, as efficiency becomes paramount, it is time to upgrade to stop-and-chop. While divide and conquer relies on energy-heavy sculpting, stop and chop utilizes the phaco tip to “stop” and stabilize the first half of the nucleus before chopping the remainder with a manual instrument. This transition reduces total phaco energy, protecting the corneal endothelium, and significantly cuts down on surgical time. Moving to stop-and-chop signifies a resident’s readiness to handle denser nuclei with more refined, mechanical forces rather than sheer ultrasound.
