【摘要】 目的:探讨高度近视眼的眼轴(AL)、屈光度(D)、角膜曲率及角膜厚度(CCT)的相互关系。方法:将高度近视患者80例158眼分为3组:A组为高度近视(-6.00～-9.00D)26例46眼,B组为超高度近视(-9.25～-20.00D)57例97眼,C组为超高度近视(≥20.25D)9例15眼,分别测量3组患者眼轴(AL)、屈光度(D)、角膜曲率(K1,K2)值及角膜厚度(CCT)。结果:AL值:A组26.75±0.15mm,B组29.25±0.19mm,C组32.27±0.84mm,三组比较差异均有统计学意义(均P<0.05);A,B,C组屈光度与AL呈正相关(r=0.352,0.715,0.622;P<0.05),三组意义不同,分别为低、高、高相关;A,B,C组AL与角膜曲率均呈负相关(r1=-0.630,-0.494,-0.750;r2=-0.609,-0.465,-0.782;P<0.05),眼轴越长曲率越低;A组屈光度与角膜曲率(K1,K2)值呈正相关(r1=0.575,r2=0.346,P<0.05),B和C组不相关;A,B和C组角膜厚度与角膜屈光力无相关性。结论:眼轴增长是高度近视发病的主要影响因素,角膜曲率改变是次要因素,而与角膜厚度不相关。更多还原

【Abstract】 AIM:To study the correlation of the axial length(AL), diopter(D), keratometric power (K1,K2) and central corneal thickness(CCT) of high myopia. METHODS :Eighty cases(158 eyes ) were divided into 3 groups depending on their diopters: 26 cases(46 eyes) with diopters arranged from -6.00D--9.00D in group A (myopia group); 57 cases(97 eyes) with diopters arranged from -9.25D--20.00D in group B (high myopia group); 9 cases(15 eyes) with diopters over 20.25D in group C (super high myopia group). AL, diopter, keratometric power and CCT of three groups were measured. RESULTS: There were significant difference(P<0.05) among AL values of three groups (group A: 26.75±0.15mm; group B: 29.25±0.19 mm; group C: 32.27±0.84mm). Positive correlations existed between AL values and diopters of three groups (r=0.352,0.715,0.622;P<0.05),while negative correlations between AL values and K1、K 2(r1=-0.630,-0.494,-0.750, r2=-0.609,-0.465,-0.782;P<0.05). Positive correlations existed between diopters and K1,K2 in group A, while did not exist in group B and C. No correlation existed between CCT and diopters of three groups. CONCLUSION: Axial growth was the main influence factor of high myopia, keratometric power was the second factor, and CCT has no influence. 更多还原