摘要
AIM: To evaluate the visual outcomes of Contoura Vision(CV) with automatic eye tracking system in eyes with myopia and myopic astigmatism.METHODS: This prospective study included 160 eyes(80 patients) with moderate myopia and irregular astigmatism between January and August 2018. Subjects were randomly divided into CV group(80 eyes) that under went CV femtosecond laser-assisted in situ keratomileusis(FS-LASIK) and a control group(80 eyes) that underwent wavefrontoptimized FS-LASIK. Visual outcomes and astigmatic vector analysis were evaluated and compared between preoperatively and 3 mo postoperatively. RESULTS: Basic details were similar in both groups(P>0.05). At 3 mo postoperatively, uncorrected distance visual acuity was 20/16, 20/20, and 20/25 in 24, 76, and 80 eyes of patients in CV group, respectively. The CV group was better in predictability of astigmatism correction at 3 mo postoperatively. In CV group, 64 eyes had deviation of astigmatic axis within 15° and 28 eyes had deviation of astigmatic axis within 5°, both were better than those in the control group. The number of eyes with residual astigmatism within 0.5 D were less in CV group(48 eyes) than the control group(40 eyes). Compared with the preoperative, C7 significantly reduced to 0.056±0.030 in CV group at 3 mo after the procedure(P<0.05), and were significantly lower than those in the control group(P<0.05).CONCLUSION: CV with automatic eye tracking system is safe and effective for the correction of myopia and myopic astigmatism.
