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To specify the standard of LASEK surgery, this study examined the determination factors affecting the high order aberrations (HOAs) in preoperative and postoperative LASEK. 51 adult patients (102 eyes) were evaluated at the baseline and 2 months after LASEK surgery from Nov 2011 to Jul 2012. The postoperative HOAs (0.538 ㎛) were higher than the preoperative (0.341 ㎛). In linear regression analysis, the refractive components that affected the postoperative HOAs were J of corneal astigmatism (CA, 0.400), J of refractive astigmatism (RA, 0.389), corneal astigmatism (CA, 0.282), spherical equivalent (SE, 0.239), refractive astigmatism (RA, 0.213), and pupil size (PS, 0.194) with a high R. In multiple regression, J of CA, PS and SE were significant factors with the postoperative HOAs. In conclusion, both HOAs and J of CA should be considered when determining the suitable factors for LASEK surgery.

Determination Factors Affecting the High Order Aberrations in Preoperative and Postoperative LASEK