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KMID : 0360220150560020180
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Journal of the Korean Ophthalmological Society
2015 Volume.56 No. 2 p.180 ~ p.189
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Clinical Outcome of Retreatment after Refractive Surgery
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Lee Eun-Jung
Lim Dong-Hui
You Ja-Young
Chung Tae-Young
Chung Eui-Sang
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Abstract
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Purpose: To evaluate the clinical outcome of retreatment after refractive surgery.
Methods: Retrospective analysis of 38 eyes of 24 patients who received retreatment surgery after refractive surgery from August 2008 to May 2013 was performed. Pre-initial surgery characteristics and the reason for retreatment were investigated, and preand post-retreatment uncorrected visual acuity, best corrected visual acuity, safety index, efficacy index, predictability, and postoperative complication were also investigated.
Results: Age at initial refractive surgery and retreatment were 28.50 ± 7.29 years (17-49 years) and 31.21 ± 6.49 years (21-49 years). Reasons for retreatment were myopic regression in 36 eyes (94.7%) and overcorrection in two eyes (5.3%). Methods of retreatment were laser subepithelial keratomileusis (LASEK) in 31 eyes (81.6%) and laser-assisted in situ keratomileusis (LASIK) in seven eyes (18.4%). Safety index values for all were above 1.0 and efficacy index values were 0.92, 0.93, and 0.95 in postoperative examination at 1 month, 3 months, and 6 months, respectively. No eye showed a decrease in best corrected visual acuity. One eye had transient hyperopia after retreatment, and two eyes had postoperative corneal opacity, but no eye experienced significant alteration in visual prognosis.
Conclusions: Retreatment after refractive surgery was an efficient and safe clinical course in our clinic. No long-term complications were observed, and uncorrected visual acuity and refractive errors significantly improved after retreatment. In particular, LASEK can be considered as a safe and efficient retreatment modality without risk of keratectasia.
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KEYWORD
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LASEK, LASIK, Myopic regression, Refractive surgery, Retreatment
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