CAJ | 학술논문

目的分析不同近视程度患者的角膜地形图及准分子激光术前、术后角膜地形图的差异,了解不同近视程度及术后角膜表面形态的改变.方法回顾性分析2004年在我院行准分子激光屈光性手术的159例患者的角膜地形图资料,比较SRI、SAI、CLY等反映角膜表面形态的参数,采用SPSS 13.0统计软件进行统计分析.结果不同近视程度组间角膜地形图比较示:CYL的差异有统计学意义(P＜0.05),而SRI、SAI各组间没有明显差异P＞0.05);准分子激光屈光性手术前后角膜地形图参数分析示:术后CYL、SRI、SAI均有显著变化(P＜0.01),其差异具有统计学意义.结论不同程度的近视患者间角膜表面的规则程度、对称性没有显著差异,而散光程度随近视度数增大而有所增加.准分子激光术后角膜规则性、对称性、散光程度均有显著改变,行准分子激光术矫正屈光不正时应更加注重角膜形态的改变,以减少术后视觉质量及光学问题的发生.
목적 분석불동근시정도환자적각막지형도급준분자격광술전、술후각막지형도적차이,료해불동근시정도급술후각막표면형태적개변.방법 회고성분석2004년재아원행준분자격광굴광성수술적159례환자적각막지형도자료,비교SRI、SAI、CLY등반영각막표면형태적삼수,채용SPSS 13.0통계연건진행통계분석.결과 불동근시정도조간각막지형도비교시:CYL적차이유통계학의의(P＜0.05),이SRI、SAI각조간몰유명현차이P＞0.05);준분자격광굴광성수술전후각막지형도삼수분석시:술후CYL、SRI、SAI균유현저변화(P＜0.01),기차이구유통계학의의.결론 불동정도적근시환자간각막표면적규칙정도、대칭성몰유현저차이,이산광정도수근시도수증대이유소증가.준분자격광술후각막규칙성、대칭성、산광정도균유현저개변,행준분자격광술교정굴광불정시응경가주중각막형태적개변,이감소술후시각질량급광학문제적발생.
Objective To analyze the change on corneal topography before and after excimer laser keratorefractive surgery for correction of different degree of myopia, and to investigate the corneal shape changes after excimer laser keratorefractive surgery for correction of myopia. Methods 159 patients received excimer laser keratorefractive surgery in our hospital were included in the retrospective study. Parameters refrecting corneal surface, such as SRI、SAI、CLY, were analyzed in SPSS 13.0 statistics software. Results As is indicated on the Corneal Topography of Myopia of different degree: There was significant difference in CYL (P ＜0.05 ),and no significant difference in SRI、 SAI of each group ( P ＞0.05 ); As is indicated on the corneal topography before and after excimer laser keratorefractive surgery: CYL、SRI 、SAI changed with statistical significance after operation (P ＜0.01 ). Conclusion Among the patients of different degree of myopia, there was no significant difference in surface regularity and symmetry, and corneal astigmatism increased with an increase in the degree of refractive error .But there was significant difference in surface regularity ,symmetry and corneal astigmatism after excimer laser keratorefractive surgery. Therefore, when excimer laser keratorefractive surgery for correction of myopia is performing, more attention should be paid to the change of corneal surface, which helps reduce the occurrence of visual quality and optical questions.