The slip knot in it’s variations is one of the most valuable skills for the surgeon.
It holds under pressure, does not tighten or loosen with additional throws and results
in a smaller knot which is easier to bury.
The ability to create and modify astigmatic relaxing incisions at the slit lamp allows
for the actual correction of the majority of astigmatism and with the C-procedure
allows corrections up to 5-6 diopters.