CAJ | 학술논문

目的探讨传统准分子激光原位角膜磨镶术(LASIK)和前弹力层下角膜磨镶术(SBK)对角膜高阶像差的影响.方法前瞻性队列研究.行LASIK手术的患者38例(76眼)和行SBK手术的患者41例(73眼),采用德国WaveLight公司角膜地形图仪(Allegretto Topolyzer)搜集这些患者手术前后的角膜地形图数据,转换得到像差数据,以Zemike多项式形式表示高阶像差.对数据进行配对t检验和独立样本t检验.结果术后所有眼裸眼视力＞0.8.LASIK手术前后垂直彗差(Z31)、水平彗差(Z-13)、慧差(|Z|13)、三叶草像差(|Z|33)、球差(Z04)的差异均存在统计学意义(t=10.201、2.990、-8.525、-2.140、-16.736,P＜0.01); SBK组相应的像差差异也存在统计学意义(t=12.840、2.899、-12.518、-2.944、-23.854,P＜0.01).LASIK组和SBK组Z13,Z-13,|Z|13,|Z|33手术前后变化量的差异无统计学意义.结论 LASIK和SBK手术均会增加角膜高阶像差,但两种手术对角膜高阶像差的影响无显著差异.
목적 탐토전통준분자격광원위각막마양술(LASIK)화전탄력층하각막마양술(SBK)대각막고계상차적영향.방법 전첨성대렬연구.행LASIK수술적환자38례(76안)화행SBK수술적환자41례(73안),채용덕국WaveLight공사각막지형도의(Allegretto Topolyzer)수집저사환자수술전후적각막지형도수거,전환득도상차수거,이Zemike다항식형식표시고계상차.대수거진행배대t검험화독립양본t검험.결과 술후소유안라안시력＞0.8.LASIK수술전후수직혜차(Z31)、수평혜차(Z-13)、혜차(|Z|13)、삼협초상차(|Z|33)、구차(Z04)적차이균존재통계학의의(t=10.201、2.990、-8.525、-2.140、-16.736,P＜0.01); SBK조상응적상차차이야존재통계학의의(t=12.840、2.899、-12.518、-2.944、-23.854,P＜0.01).LASIK조화SBK조Z13,Z-13,|Z|13,|Z|33수술전후변화량적차이무통계학의의.결론 LASIK화SBK수술균회증가각막고계상차,단량충수술대각막고계상차적영향무현저차이.
Objective To investigate the influence of laser in situ keratomileusis (LASIK) and sub-Bowman keratomileusis (SBK) on corneal higher-order aberrations.Methods This prospective study involved 38 subjects (76 eyes) treated with LASIK and 41 subjects (73 eyes) treated with SBK.Higher-order aberrations data were obtained from corneal topography before and after the operations.Higher-order aberrations were analyzed with Zernike polynomials.The data were analyzed with a paired samples t test and an independent samples t test.Results The uncorrected visual acuity postoperation were better than 0.8 for all eyes.The preoperative and postoperative differences in vertical coma (Z31),horizontal coma (Z-13),coma (|Z|13),trefoil (|Z|33),and spherical aberration (Z04) in the LASIK group were significant (t=10.201,2.990,-8.525,-2.140,-16.736,P＜0.01).The corresponding differences were also significant for the SBK group (t=12.840,2.899,-12.518,-2.944,-23.854,P＜0.01).The differences in the change in values (postoperative minus preoperative) of Z13,Z-13,|Z|13,|Z|33,Z04 between the LASIK and SBK groups were not significant.Conclusion Both LASIK and SBK can increase postoperative corneal higher-order aberrations,but there is no significant difference in the change in higher-order aberrations between the two types of operations.