Comparison of NIDEK CATz wavefront-guided LASIK to traditional LASIK with the NIDEK CXII excimer laser in myopia.

Purpose: To compare the visual and refractive outcomes in myopic LASIK between wavefront-guided and traditional treatment.

Methods: The study included 162 eyes of 81 myopic patients undergoing LASIK by one surgeon. The right eye of each patient underwent customized LASIK with the NIDEK NAVEX laser system (NIDEK, Gamagori, Japan) (study group); the left eye of each patient underwent traditional LASIK with the NIDEK CXII excimer laser system (control group).

Results: No significant differences were noted in refractive error, uncorrected visual acuity, and best spectacle-corrected visual acuity after surgery between the two groups (t test, P>.05). Postoperatively, 3.7% of patients in the study group reported glare, which was significantly lower than 12.4% in the control group (chi-square test, .01
Conclusions: Customized LASIK significantly reduces the rate of postoperative glare and induction of higher order aberrations compared to traditional LASIK.