Comparison of higher-order aberrations after wavefront-guided laser in situ keratomileusis and laser-assisted subepithelial keratectomy

被引:33
作者
Chung, So-Hyang
Lee, In Sik
Lee, Young Ghee
Lee, Hyung Keun
Kim, Eung Kweon
Yoon, Geunyoung
Seo, Kyoung Yul
机构
[1] Yonsei Univ, Coll Med, Dept Ophthalmol, Brain Korea Project Med Sci 21, Seoul, South Korea
[2] Yonsei Univ, Coll Med, Yonsei Inst Vis Res, Myongdong Bal Geun Sesang Eye Clin, Seoul, South Korea
[3] Yong Dong Severance Hosp, Seran Eye Ctr, Seoul, South Korea
[4] Yong Dong Severance Hosp, Dept Ophthalmol, Seoul, South Korea
[5] Univ Rochester, Med Ctr, Dept Ophthalmol, Rochester, NY 14642 USA
关键词
D O I
10.1016/j.jcrs.2005.10.033
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
PURPOSE: To compare the higher-order aberrations (HOAs) in 70 eyes (38 patients) that had wave front-guided laser in situ keratomileusis (LASIK) with those in 70 eyes (40 patients) that had wave front-guided laser-assisted subepithelial keratectomy (LASEK) for the treatment of myopia. SETTING: Department of Ophthalmology, Yonsei University College of Medicine, Myongdong Balgeun sesang Eye Clinic, and Seran Eye Center, Seoul, Korea. METHODS: In a prospective study, 140 consecutive eyes of 78 patients were treated with wavefront-guided LASIK or LASEK according to the patient's choice after each procedure had been thoroughly explained. The patients were followed for 6 months. Best corrected visual acuity (BCVA), uncorrected visual acuity (UCVA), manifest refraction, and wavefront aberrations were measured at baseline and 1, 3, and 6 months after surgery. RESULTS: There were no significant differences in postoperative BCVA, UCVA, and manifest refraction between groups. The mean root-mean-square wavefront error of HOAs for a scotopic pupil in the wavefront-guided LASIK group was significantly smaller than that in the wavefront-guided LASEK group at 1 month. Analyzing individual Zernike coefficients, the spherical aberration and second coma were significantly smaller in the wavefront-guided LASIK group than in the wavefront-guided LASEK group at 1 month. This difference in HOAs between groups disappeared at 3 and 6 months. CONCLUSIONS: The HOAs in the scotopic condition were not different between the wavefront-guided LASIK and LASEK groups beginning 3 months after surgery. However, the HOAs in the LASIK and LASEK groups had a different time course, especially in the case of spherical aberration. This finding suggests that postoperative changes in aberration contribute to the final outcome of wavefront-guided ablation.
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收藏
页码:779 / 784
页数:6
相关论文
共 13 条
[1]   Spherical aberration after laser in situ keratomileusis and photorefractive keratectomy - Clinical results and theoretical models of etiology [J].
Hersh, PS ;
Fry, K ;
Blaker, JW .
JOURNAL OF CATARACT AND REFRACTIVE SURGERY, 2003, 29 (11) :2096-2104
[2]   Wavefront- and topography-guided ablation in myopic eyes using Zyoptix [J].
Kanjani, N ;
Jacob, S ;
Agarwal, A ;
Agarwal, A ;
Agarwal, S ;
Agarwal, T ;
Doshi, A ;
Doshi, S .
JOURNAL OF CATARACT AND REFRACTIVE SURGERY, 2004, 30 (02) :398-402
[3]  
Kaya V, 2004, J REFRACT SURG, V20, P223
[4]  
MACRAE SM, 2001, CUSTOMIZED CORONEAL
[5]  
McDonald MB, 2000, J REFRACT SURG, V16, pS617
[6]  
Moreno-Barriuso E, 2001, INVEST OPHTH VIS SCI, V42, P1396
[7]   Wavefront-optimized ablation profiles:: Theoretical background [J].
Mrochen, M ;
Donitzky, C ;
Wüllner, C ;
Löffler, J .
JOURNAL OF CATARACT AND REFRACTIVE SURGERY, 2004, 30 (04) :775-785
[8]  
Oliver KM, 1997, J REFRACT SURG, V13, P246
[9]   Comparison of corneal wavefront aberrations after photorefractive keratectomy and laser in situ keratomileusis [J].
Oshika, T ;
Klyce, SD ;
Applegate, RA ;
Howland, HC ;
El Danasoury, MA .
AMERICAN JOURNAL OF OPHTHALMOLOGY, 1999, 127 (01) :1-7
[10]   Induced optical aberrations following formation of a laser in situ keratomileusis flap [J].
Pallikaris, IG ;
Kymionis, GD ;
Panagopoulou, SI ;
Siganos, CS ;
Theodorakis, MA ;
Pallikaris, AI .
JOURNAL OF CATARACT AND REFRACTIVE SURGERY, 2002, 28 (10) :1737-1741