AIM: To analyze the wavefront after computer assisted corneal topography guide optimized refractive keratectomy(ORK-CAT)excimer laser in situ keratomileusis(LASIK).

METHODS: Forty patients(80 eyes)from the myopia laser treatment center of our hospital were measured and divided into two groups, in which 20 cases( 40 eyes)received routine LASIK(convention group), 20 cases(40 eyes)received ORK-CAT personality LASIK(ORK-CAT group). The visual acuity, refractions and the higher order aberrations of the patients were examined 1 month, 3 and 6 months after operation.

RESULTS: There was a significant difference in refractive diopter between the two group post-operation(P<0.05). Refractive diopter between the two group had no significant difference 3 and 6 months post-operation(P>0.05). Both of the group regressed slightly after the surgery and the ORK-CAT group was less than the convention group. The higher order aberration was increased after LASIK operation(P<0.05). The higher order aberration of convention group was higher than that of ORK-CAT group 1 month, 3 and 6 months after operation(P<0.05).

CONCLUSION: Patients received ORK-CAT personality LASIK treatment have better quality of vision after surgery than those received convention LASIK treatment.