Analysis on the reason of impact on postoperative astigmatism of different incisions in cataract patients

With the increasing progress of cataract surgery, the postoperative residual astigmatism has become one of the factors that influence the desirable refractive outcome for patients. At present, the most commonly used cataract extraction is also traditional phacoemulsification cataract surgery with incision size of 3.2 mm. With the progress of Micro-incision cataract surgery(MICS), the postoperative residual astigmatism decreased. The different surgery induce different postoperative residual astigmatism. Through literature review, to analyze the causes of postoperative residual astigmatism by different incision cataract.