双眼散光轴向关系的定性和定量分析  

The Qualitative and Quantitative Analysis on Relationship between Binocular Astigmatism Axes

作　　者：谢艾芮 牟章兵 朱晋 

机构地区：[1]成都三六三医院眼视光部,成都610041

出　　处：《华西医学》2011年第5期714-716,共3页West China Medical Journal

摘　　要：目的探讨双眼散光轴向的关系。方法随机选取2010年1—12月预行准分子激光原位角膜磨镶术(laser in situ keratomileusis,LASIK)手术患者200例400只眼(散光>-0.50D),收集全眼散光和角膜散光轴向,定性和定量分析双眼散光轴向的关系。结果①定性分析:双眼全眼散光性质相同病例在电脑验光仪结果中占92.5%,在综合验光仪结果中占95.0%;双眼角膜散光性质相同病例在电脑验光仪结果中占95.5%,在角膜地形图结果中占97.5%。②定量分析:双眼全眼散光在电脑验光仪结果中对称者为36.5%,近似对称为25.0%,非对称为38.5%;在综合验光仪结果中对称者为50.5%,近似对称为19.5%,非对称为30.0%。双眼角膜散光在电脑验光仪结果中对称者为37.0%,近似对称为31.5%,非对称为31.5%;在角膜地形图结果中对称者为43.0%,近似对称为32.0%,非对称为25.0%。双眼散光轴向对称性指数的中位数在4种检查结果中分别为:8、6、8、6。结论双眼的全眼和角膜散光在轴向方面都具有同质性,并且具有对称或近似对称趋势。Objective To analyze the relationship between binocular astigmatism axes.Methods This study included 400 eyes of 200 patients treated by laser in situ keratomileusis（LASIK） between January and December 2010,whose astigmatic degrees were greater than-0.5 D.We collected astigmatic axles coming from either whole eye or cornea.The relationship between binocular astigmatism axes was analyzed qualitatively and quantitatively.Results ① Qualitative analysis： cases of total astigmatism axis with similar quality in autorefraction took up 92.5%,and 95% in subjective refraction.Cases of cornea astigmatism axis with similar quality in autorefraction took up 95.5%,and 97.5% in cornea topography.② Quantitative analysis： in autorefraction,cases of total astigmatism axes were symmetrical in 36.5%,approximately symmetrical in 25%,and dissymmetrical in 35% of the subjects.In subjective refraction,50.5% showed symmetry,19.5% approximate symmetry,and 30% dissymmetry.In autorefraction,cases of cornea astigmatism axis were symmetrical in about 37%,approximately symmetrical in 31.5%,and dissymmetrical in 31.5% of the patients.In cornea topography,43% of the cases were symmetrical,about 32% were approximately symmetrical,and 25% were dissymmetrical.The middle numbers of the symmetrical index for the four kinds of examinations were respectively 8,6,8,and 6.Conclusion The total astigmatism axis and the binocular astigmatism axis of cornea have the characteristic of homogeneity,also the trend of symmetry.

关 键 词：双眼散光 轴向 同质性 对称性 

分 类 号：R778.1[医药卫生—眼科] R779.63[医药卫生—临床医学]