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Published in: BMC Ophthalmology 1/2017

Open Access 01-12-2017 | Research article

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

Authors: Yingjun Chen, Dong Yang, Tian Han, Haipeng Xu, Meiyan Li, Xingtao Zhou

Published in: BMC Ophthalmology | Issue 1/2017

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Abstract

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.
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Metadata
Title
A pilot study: LASEK with the Triple-A profile of a MEL 90 for mild and moderate myopia
Authors
Yingjun Chen
Dong Yang
Tian Han
Haipeng Xu
Meiyan Li
Xingtao Zhou
Publication date
01-12-2017
Publisher
BioMed Central
Published in
BMC Ophthalmology / Issue 1/2017
Electronic ISSN: 1471-2415
DOI
https://doi.org/10.1186/s12886-017-0493-4

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