A pilot study: LASEK with the Triple-A profile of a MEL 90 for mild and moderate myopia

作者：Chen, Yingjun; Yang, Dong; Han, Tian; Xu, Haipeng; Li, Meiyan; Zhou, Xingtao^*

来源：BMC Ophthalmology, 2017, 17(1): 98.

DOI：10.1186/s12886-017-0493-4

• MEL 90
• LASEK
• Triple-A
• Myopia

Background: To investigate the visual and refractive outcomes in patients with mild to moderate myopia after laser-assisted subepithelial keratectomy (LASEK) using the 500 Hz pulse rate of the Triple-A profile. @@@ Methods: Thirty-six eyes of 20 patients (mean age, 27.5 +/- 4.6 years) were included in this prospective, consecutive study. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), corneal topography, and corneal aberrations were measured preoperatively and 1 day, 1 week, 1, 3 and 6 months post-operation. @@@ Results: At 1 week after surgery, UDVA was better than or equal to 20/25 in all eyes. At postoperative 6 months, the efficacy and safety index was 1.05 +/- 0.13 and 1.12 +/- 0.15, respectively; all eyes had a UDVA of 20/20 or better, and no eyes showed a loss in CDVA; 100% of the eyes were within +/- 1.00 D of the attempted spherical equivalent (SE) correction. @@@ Conclusion: The postoperative results indicate that using the Triple-A ablation profile of the MEL 90 excimer laser with a 500 Hz pulse rate is a safe, efficient, and predictable method to correct mild to moderate myopia.

• 出版日期2017-6-23
• 单位复旦大学