Long-Term Outcome of Epi-LASIK for High Myopia

• Published in: European journal of ophthalmology 2012, Vol.22 (7_suppl), p.98-105
• Main Authors: Wang, Shiyuan, Dai, Jinhui, Chu, Renyuan, Zhou, Xingtao
• Format: Article
• Language: English
• ISSN: 1120-6721; 1724-6016
• DOI: 10.5301/ejo.5000025

Purpose To evaluate the long-term outcomes of epipolis laser-assisted in situ keratomileusis (epi-LASIK) for high myopia. Methods High myopic patients who underwent epi-LASIK during 2004 and 2005 were included in this study. Epi-LASIK was performed with an automatically rotational epikeratome (KM-5000D). Postoperative visual acuity, manifest refraction, and haze formation were assessed 3 mo, 6 mo, 1 y, and 3 y after surgery. Results were compared by dividing patients into 2 groups according to preoperative mean refractive spherical equivalent (MRSE): group A (≥–6 D to −10 D; group B ≥–10 D). The differences within groups were analyzed using mixed model for continuous variables. The differences between groups were analyzed using t test or rank sum test for continuous variables, and Pearson χ2 or Fisher exact probabilities for categorical variables. Results A total of 20 patients (33 eyes) were followed up for more than 3 years with 17 eyes in group A (MRSE −8.15±1.41 D) and 16 eyes in group B (MRSE −12.95±2.91 D). While postoperative refraction regression occurred in both groups, it was more prominent in group B (p