It can be helpful to see the machine fluidic parameters in real-time as the phaco chop procedure is performed. We can see that yes, the vacuum level does rise upon occlusion of the phaco tip by cataract material, which is characteristic of a peristaltic fluid pump. And at the same time, the aspiration flow rate will drop to zero as the tip is occluded.
This video features a guest surgeon, Dr NV Arulmozhi Varman from India who shows us an expert level phaco chop technique in a dense cataract. For those who wish to learn phaco chop, this video really helps with the understanding of the fluidic parameters during the surgery.
Click below to learn from this fluidic analysis of phaco chop: