In this case, the resident begins by making a phaco incision that is not good. The roof is too thin and it is placed too close to the central cornea. While just the beginning part of the incision is made, the resident is alerted to the poor architecture and she is then able to abandon the original partially-made incision and start over. This do-over allowed her to construct an excellent incision and the rest of the case went beautifully.
click below to learn what makes a great incision including an OCT analysis: