Title: Second operation after laser in situ keratomileusis
Abstract: Objective To compare clinical results between the laser in situ keratomileusis ( LASIK) surgery and the laser subepithelial keratomileusis (LASEK) surgery as the second operation after an unsuccessful LASIK surgery. Methods Thirty one patients (62 eyes) with refractive regression or under-correction after LASIK operation received the second surgery. Thirty eyes received LASIK surgery (group A) and 32 eyes received LASEK surgery (group B). The follow-up period was one year. The main parameters included visual acuity, refraction, corneal curvature, and the total value of high-aberration. Results The difference in visual acuity in one week postoperation between both group was statistically significant(t=5.21, P<0.01) , the acuity of LASEK group(0.57 ±0. 11) was obviously lower LASIK group(0.79 ±0.21). There is no difference in acuity between both group in 1 month and lyear postop. The difference in uncorrected visual acuity, average spherical equivalent refractive degree, average corneal curvature, and the total value of high - aberration between both group 1 year after operation was statistically not significant. Uncorrected visual acuity ( A group 0.84 ± 0. 15, Bgroup 0. 82 ± 0. 11, t = 0. 60 ) , average spherical equivalent refractive degree(A group -0.34 ±1.15,B group -0.32 ±1.13,t= -0.07),average corneal curvature(A group 37. 87 ±1. 95, B group 38. 47 ±2. 15,t = - 1. 15) ,the total value of high -aberration (A group 0. 45 ±0. 11, B group 0. 48 ± 0. 13, t = - 0. 98). One patient developed epithelium ingrowth after LASIK surgery. One patient suffered from 2 + haze after LASEK surgery. Conclusion Both LASIK and LASEK surgery can obtain satisfactory therapeutic results after an unsuccessful LASIK surgery.
Key words:
Keratomileusis, laser in situ; Keratectomy, subepithelial, laser-assisted; Aberration; Reoperation
Publication Year: 2010
Publication Date: 2010-08-01
Language: en
Type: article
Indexed In: ['pubmed']
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