This patient has a dense cataract and I increased the phaco power in order to help break apart the nucleus. At one point when I am embedding the phaco tip into the nucleus, it goes in too far and then I experience a sudden deepening of the posterior chamber. That is an ominous sign and it could indicate a complication such as a ruptured posterior capsule. While the complication of a ruptured posterior capsule happens to every surgeon, I have not experienced this issue in well over 1000 surgeries. Watch the video to see how I deal with this issue in real-time and how I successfully complete the case. What was the cause of the chamber deepening?