Surgical guidance and planning software for astigmatism treatment

A system comprising:

• a non-transitory computer-readable medium storing instructions which, when executed by a processor, cause a surgical planning system to perform the steps of:
• receiving an initial surgical plan including an initial primary incision position;
• receiving a surgically induced astigmatism value corresponding to the initial primary incision position;
• determining, based on an amount of astigmatism to be corrected for an eye and the surgically induced astigmatism value corresponding to the initial primary incision position, a power and orientation for a toric intraocular lens (IOL);
• determining, based on an amount of post-surgical astigmatism associated with the toric IOL having the determined power and orientation and the surgically induced astigmatism value corresponding to the initial primary incision position, an adjusted primary incision position, wherein a surgically induced astigmatism value corresponding to the adjusted primary incision position reduces the amount of post-surgical astigmatism;
• generating an output comprising the adjusted primary incision position;
• and
• generating a surgical plan to incise a cornea of a patient to create the primary incision at the adjusted primary incision position;
• and
• a laser system communicatively coupled with the processor, the laser system operable to receive the adjusted primary incision position and incise a cornea of a patient to create the primary incision at the adjusted incision position.