Clinical Outcomes of Advanced Surface Ablation with Smoothing in High Myopia.
10.3341/jkos.2012.53.3.365
- Author:
Ki Su AHN
1
;
Seung Wuk LEE
;
Gi Heon LEE
;
Bong Joon CHOI
Author Information
1. Lee Eye Clinic, Busan, Korea. eyebong1@hanmail.net
- Publication Type:Original Article
- Keywords:
Advanced surface ablation (ASA);
Customized Aspheric Transition zone (CATz);
High myopia;
Smoothing
- MeSH:
Cornea;
Eye;
Humans;
Masks;
Myopia;
Refractive Errors
- From:Journal of the Korean Ophthalmological Society
2012;53(3):365-371
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate the results of Advanced Surface Ablation (ASA) coupled with "smoothing" to smooth the ablation surface after covering masking fluid. METHODS: ASA was performed in 61 eyes with ablation depth of more than 75 microm. The mean refractive error was -5.88 +/- 1.27 D and mean ablation depth was 102.93 +/- 12.06 microm. Smoothing was performed in all patients (mean depth 16.79 +/- 2.43 microm, mean diameter 8.77 +/- 0.16 mm). Customized Aspheric Transition zone (CATz) was used in the laser algorithm. RESULTS: The mean refractive error was -0.29 +/- 0.41 D at postoperative 6 months and 97% of patients had an UCVA of 1.0 or better at postoperative 6 months. There was no statistically significant difference in magnitude of high-order aberrations at postoperative 6 months. The magnitude of total spherical aberrations increase was 0.084 microm at postoperative 6 months (p<0.05, paired t-test). The cornea was maintained clear in the majority of eyes. CONCLUSIONS: Excellent results were obtained by ASA coupled with "smoothing" in high myopia patients with an ablation depth greater than 75 microm.
