| 正视眼与近视眼角膜前表面非球面性的分析 |
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| 引用本文： | 张沧霞,郑艳霞,崔艳琨,孟辉,孙连敏,姚娜. 正视眼与近视眼角膜前表面非球面性的分析[J]. 眼科新进展, 2011, 31(4): 355-356,360 |
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| 作者姓名： | 张沧霞 郑艳霞 崔艳琨 孟辉 孙连敏 姚娜 |
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| 作者单位： | 河北医科大学沧州中西医结合临床医学院,河北省沧州市,061001 |
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| 基金项目： | 河北省科技厅科技支撑计划项目 |
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| 摘 要： | 目的探讨我国正视眼与近视眼中青年人群的角膜前表面非球性参数(Q值)的分布及其与屈光度的关系。方法随机选择18～44岁行准分子激光角膜屈光手术的低、中、高度近视及正视眼患者,各组均取40例(80眼)。应用AstraMax三维角膜综合检查站行角膜地形图检查,记录Q值,并进行统计学分析。结果正视眼Q值均数为-0.1028±0.0712;近视眼总体Q值均数为-0.1600±0.1700,呈正态分布;近视眼Q值与屈光度之间存在线性相关关系(F=9.6665,P=0.0021);正视眼与近视眼Q值总体差异有统计学意义(t=19.7241,P<0.001);高度近视组和低度、中度组间的差异均有统计学意义(q=4.0037,P<0.05;q=3.1218,P<0.05);低度、中度近视眼组间差异无统计学意义(q=0.8818,P>0.05)。结论我国近视人群的Q值呈正态分布,大部分人群角膜为长椭球形。Q值与屈光不正程度相关。近视眼角膜前表面形态较正视眼更趋于长椭圆非球面形。
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| 关 键 词： | 角膜非球面性 正视眼 近视眼 |
Analysis of aspherical of corneal anterior surface in Chinese emmetropia population and myopia |
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| ZHANG Cang-Xia,ZHENG Yan-Xia,CUI Yan-Kun,MENG Hui,SUN Lian-Min,YAO Na. Analysis of aspherical of corneal anterior surface in Chinese emmetropia population and myopia[J]. Recent Advances in Ophthalmology, 2011, 31(4): 355-356,360 |
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| Authors: | ZHANG Cang-Xia ZHENG Yan-Xia CUI Yan-Kun MENG Hui SUN Lian-Min YAO Na |
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| Affiliation: | ZHANG Cang-Xia,ZHENG Yan-Xia,CUI Yan-Kun,MENG Hui,SUN Lian-Min,YAO Na Cangzhou Clinical College of Integrated Traditional Chinese and Western Medicine of Hebei Medical University,Cangzhou 061001,Hebei Province,China |
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| Abstract: | Objective To investigate the distribution features of aspherical parameter(Q value) of corneal anterior surface in Chinese myopia and emmetropia young population and analyze the relationship between Q value and diopter. Methods About 120 myopic patients(240 eyes) from 18 to 44 years old for laser-assisted in situ keratomileusis(LASIK) were randomly divided into 3 groups,low-myopia group,moderate myopia group and high myopia group,40 cases(80 eyes) in each group.Each subject received corneal topography inves... |
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| Keywords: | corneal aspherical emmetropia myopia |
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