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Comparisons of morphologic characteristics between thin-flap LASIK and SBK 被引量:2
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作者 Yi Sun Ying-Ping Deng +2 位作者 Lin Wang Yong-Zhi Huang and le-mei qiu 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2012年第3期338-342,共5页
AIM: To compare the morphologic characteristics between thin-flap laser in situkeratomileusis (LASIK) and Sub-Bowman keratomileusis (SBK), and to evaluate the uniformity of flap and to explore the correlative factors ... AIM: To compare the morphologic characteristics between thin-flap laser in situkeratomileusis (LASIK) and Sub-Bowman keratomileusis (SBK), and to evaluate the uniformity of flap and to explore the correlative factors of corneal flap thickness. METHODS: A prospective, randomized, comparative clinical study was performed in Department of Ophthalmology, West Hospital of China, Chengdu, Sichuan Province, China. Totally 59 patients 114 eyes underwent LASIK or SBK to correct myopia, 29 patients 57 eyes underwent SBK, 30 patients 57 eyes underwent LASIK. Anterior optical coherence tomography (OCT) was used to measure corneal flap thickness in all the patients 1 week after surgeries, 16 positions were set to be measured in each eye. Comparisons of flap thickness in each group and between 2 groups were evaluated. Correlative factors of flap thickness were evaluated. RESULTS: Coefficient of variation(CV, s/((X) over bar)x%)in SBK group were lesser than that in LASIK group, ttest showed there was significant statistical difference between 2 groups (P=0.000). Comparisons of the difference of 2 paired positions (temporal-nasal; superior-inferior) showed there were no significant differences in each group, but between 2 groups, there were statistical significance of value of difference (D-value) of superior and inferior positions between SBK and LASIK group (P =0.036). Linear regression analysis of correlative factors of flap thickness showed there were no statistic significances related to central corneal thickness(CCT) (P =0.060, t=1.921)and corneal curvature( P=0.083, t=1.766). CONCLUSION: SBK is better than LASIK in a-eating much uniform corneal flap. There was no evidence showing correlations between flap thickness and CCT or corneal curvature. 展开更多
关键词 Sub-Bowman KERATOMILEUSIS flap thickness
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