目的:探讨双眼屈光参差眼的眼轴差值、角膜屈光力差值及屈光度差值的相关性.方法:对61例患者进行双眼屈光度、眼轴、角膜曲率、眼轴/角膜曲率的测量,按双眼等效屈光度差值(双眼屈光度差值)分为两组,分别为双眼屈光度差值≤0.25 D(相似组)和双眼屈光度差值≥1.00 D(参差组).分别对其进行统计学分析.角膜曲率采用平均K值.结果:相似组中,双眼屈光度差值与双眼眼轴差值、双眼平均K差值正相关(r值分别为0.450、0.370,P均＜0.05),与双眼眼轴/角膜曲率差值无相关性(P＞0.05).双眼眼轴差值与双眼平均K差值正相关(r =0.552,P＜0.01).参差组中,双眼屈光度差值与双眼眼轴差值、双眼眼轴/角膜曲率差值正相关(r值分别为0.965、0.962,P均＜0.01),与双眼平均K差值无相关性(P＞0.05).双眼眼轴差值与双眼平均K差值无相关性(P＞0.05).结论:眼轴及角膜屈光力是影响双眼屈光参差的重要因素,眼轴及角膜屈光力之间不匹配、不协调而失衡导致屈光参差的产生和进展.眼轴/角膜曲率是监控屈光参差进展的敏感指标.%Objective: To analyze the correlation among the difference in the axial length, diopter and kerator efractive power between the two eyes in anisometropia. Methods: The diopter, axial length, corneal refractive power and axial length/corneal radius ( AL/CR) were measured in 61 cases. Two groups were created based on the difference of diopter; the difference of diopter^0. 25 D (the similar group) , the difference of diopter ≥1. 00 D (the different group). The data were analyzed by SPSS statistics software system. Results: In the similar group, the difference of diopter showed positive correlation with the difference of axial length (r = 0. 450, P < 0. 05) and average keratorefractive power (r = 0. 370, P < 0. 05) , but showed no correlation with the difference of AL/CR ( P > 0. 05 ). The difference of axial length showed positive correlation with the difference of average keratorefrac tive power (r = 0. 552, P < 0. 01). In the different group, the difference of diopter showed positive correlation with the difference of axial length ( r =0. 965 , P < 0. 01) and AL/CR ( r =0. 962, P < 0. 01) , but showed no correlation with the difference of average keratorefractive power ( P > 0. 05 ) . The difference of axial length showed no correlation with the difference of average keratorefractive power ( P > 0. 05 ). Conclusion: The axial length and keratorefractive power made a great impact on anisometropia. The imbalance of the axial length and kera torefractive power resulted in the production and development of anisometropia. AL/CR is the sensitive index.
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