Title: Comparison of Wavefront-guided Customized Ablation vs. Conventional Ablation in Laser in situ Keratomileusis
Abstract: ABSTRACT PURPOSE: To compare visual outcome after applying wavefront-guided customized ablation with conventional ablation in laser in situ keratomileusis (LASDX) patients. METHODS: We performed a prospective, randomized controlled study that included 22 eyes of 11 patients who were treated with LASBK using the Nidek EC-5000 excimer laser system. We applied wavefront-guided customized ablation (study group) in the first eye of each patient. The conventional ablation (control group) was performed in the other eye of the same patient. Best spectaclecorrected visual acuity (BSCVA), spherical equivalent refraction, and high-order aberrations were evaluated preoperatively and at 1 month. Highorder aberrations were measured using the Nidek OPD-Scan. RESULTS: Preoperative and 1-month postoperative BSCVA were better than 20/40 (100%) after LASDX with both conventional ablation (control) and wavefront-guided customized ablation. Preoperatively, mean high-order aberrations in the control group were 0.572 and in the study group, 0.428 (Zernike coefficient unit). One-month after LASDI, mean high-order aberrations in the control group were 0.496 and in the study group, 0.476 (Zernike coefficient unit). We found no statistically significant difference between preoperative and 1-month postoperative high-order aberrations in either group. CONCLUSION: LASDX with both conventional ablation and wavefront-guided customized ablation resulted in the same BSCVA 1 month after LASDX. Preoperative and 1-month postoperative high-order aberrations were not statistically different following LASDX between ablation types. [J Refract Surg 2002;18(suppl):S332-S335]
Publication Year: 2002
Publication Date: 2002-05-02
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
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Cited By Count: 60
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