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목적: VISX S4 CustomVue®를 이용한 라식과 Zyoptix Z100®의 advanced personalized technology (APT) 방식의 라식의 임상성적을 알아보고자 하였다. 대상과 방법: VISX S4 CustomVue®를 이용하여 라식을 시행한 30안(CustomVue군)과, Zyoptix Z100®의 APT 방식으로 라식을 시행한 26안(APT군)에서 술 후 1주, 1달, 3달에 나안시력, 교정시력, 각막비구면도(Q-value), 대비감도, 고위수차 등을 비교분석하였다. 결과: 술 후 1달, 3달째 나안시력, 교정시력에 있어 두 군간에 통계적으로 유의한 차이는 없었다. 술 후 Q-value, 대비감도에는 두 군 간에 유의한 차이가 없었다. 술후 3달째 총 고위수차의 증가량은 두 군 간에 유의한 차이가 없었고 구면수차의 증가량은 CustomVue군에서 APT군보다 유의하게 낮게 나타났다(p = 0.02). 결론: VISX S4 CustomVue®를 이용한 라식은 기존의 검증된 방식과 유사한 시력결과를 보였고, 구면수차의 증가는 Zyoptix Z100®의 APT 방식보다 낮았다.
Purpose: To investigate and compare the clinical outcomes of wavefront-guided LASIK performed by 2 different laser platforms. Methods: A retrospective analysis of consecutive cases of eyes that underwent wavefront-guided LASIK by using the VISX S4 CustomVue system and the Zyoptix Z100 system advanced personalized mode. All procedures were performed by one surgeon. Fifty-six eyes of 36 patients were included. Of the 56 eyes, 30 eyes underwent LASIK by using the VISX S4 CustomVue system (CustomVue group), and other 26 eyes underwent LASIK by using the Zyoptix Z100 system (APT group). Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), manifest refraction, contrast sensitivity, total high order aberration (HOA), spherical aberration (SA) and Q-value were recorded preoperatively and at 1 week, 1 and 3 months postoperatively. Results: There was no statistically significant difference between two groups in terms of preoperative UCVA, BCVA, manifest refraction, high order aberrations, Q-value and contrast sensitivity. Induced amount of SA was significantly lower in CustomVue group than in APT group (p = 0.02). Conclusions: Wavefront-guided LASIK performed by 2 different laser platforms caused clinically acceptable outcomes including good visual acuity and contrast sensitivity through 3 months. Furthermore, LASIK performed by VISX S4 CustomVue system caused less SA at three months after operation.
