摘要目的 评价Oculyzer眼前段分析系统引导的个体化准分子激光原位角膜磨镶术(LASIK)矫正准分子激光偏中心切削的临床效果.方法 回顾性分析.对16例(21只眼)角膜屈光偏中心切削者行Oculyzer引导的个体化LASIK进行矫正,比较手术前后裸眼视力、光学切削偏中心数值、角膜表面变异指数、角膜表面垂直不对称指数、角膜形态等指标.结果 术后裸眼视力均明显提高;偏中心数值由术前的1.4～2.6mm,平均(2.05±0.55) mm减少到术后3个月的0.06 ～0.28mm,平均(0.18±0.12) mm(t=2.858,P=0.005);角膜表面变异系数及角膜高度的不对称指数均较术前明显降低(t=2.137,P=0.005,0.017);所有眼偏中心切削均被矫正,视觉质量改善.结论 Oculyzer引导的个体化手术矫正准分子激光偏中心切削安全有效.

abstractsObjective To evaluate the clinical efficacy of Oculyzer-guided customized LASIK for eccentric cutting induced by keratorefractive surgery.Methods Twenty-one eyes of 16 patients with eccentric cutting induced by keratorefractive surgery were enrolled in this retrospective study and were treated with Oculyzer-guided customized LASIK.The uncorrected visual acuity (UCVA),the value of optical eccentric cutting,index of surface variance (ISV),index of vertical asymmetry (IVA) and corneal topography were analyzed and compared between before and after operation.Results The UCVA was improved significantly in all patients.The value of optical eccentric cutting changed significantly from 1.4 ～ 2.6 mm (average 2.05 ± 0.55mm) before operation to 0.06 ～0.28 mm (average 0.18±0.12 mm) at 3 months after operation.The ISV and IVA decreased significantly compared with that of pre-operation.The eccentric cutting was corrected in all eyes after operation,and the visual quality was improved.Conclusion Oculyzer-guided customized LASIK is a safe and effective surgery for eccentric cutting induced by keratorefractive surgery.