Title: Wavefront-guided sub-bowman keratomileusis versus laser in situ keratomileusis for myopia
Abstract: Objective To compare the efficacies of wavefront-guided sub-bowman keratomileusis and laser in situ keratomileusis for myopia. Methods In this prospective,non-randomized comparative study,104 eyes of 52 myopia patients underwent wavefront-guided sub-bowman keratomileusis treatment(WG-SBK group) and 104 eyes of 58 patients underwent laser in situ keratomileusis(LASIK group) by VISX STAR S4 excimer laser system. Visual acuity and refraction were evaluated before and 1 day,1 week,1 month,3 months and 6months after the surgery. Results There was no significant difference in uncorrected visual acuity between WG-SBK group and LASIK group at 6 months after the surgery(P 0.05),but the proportion of treated eyes obtaining one line or better improved in best corrected visual acuity(BCVA) in WG-SBK group was higher than that in LASIK group(P = 0.001). The linear regression equation of expected and actual correction for myopia in WG-SBK group and LASIK group were Y = 0.981x + 0.189(R2= 0.905,P 0.05) and Y = 0.892x + 0.839(R2= 0.892,P 0.05) at 3 months after the surgery,respectively. Conclusions Wavefront-guided sub-bowman keratomileusis showed significant advantages in safety and predictability than laser in situ keratomileusis for myopia at 6 months after the surgery.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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