Objectine To study the correlation between ocular axial length and lens thickness in patients with high myopia and non - my-opic patients with cataract,and to analyze their possible links. Methods A total of 200 patients with high myopia and cataract operated during May 2002 to May 2014 in this hospital were allocated in high myopia group,and 200 non - myopic patients with cataract as control group. The cat-aract in these patients was intumescent . The axial length and thickness of lens in patients of these two groups had been measured by IOL before the operation. The difference in thickness of lens had been compared between these 2 groups,and the correlation between ocular axial length and thickness of lens in each group had been examined. Results The average axial length in high myopia group was higher than that of control group (29. 08 ± 1. 84 mm vs. 23. 37 ± 1. 35 mm),the difference was statistically significant( P ﹤ 0. 05). The average thickness of lens was higher than that of control group(6. 33 ± 0. 42 mm vs. 5. 33 ± 0. 4 mm),and the difference was statistically significant( P ﹤ 0. 05). There was posi-tive correlation between axial length and thickness of lens in high myopia group,and the correlation coefficient was r = 0. 662,P = 0. 00. There was also positive correlation between axial length and thickness of lens in control group,and the correlation coefficient was r = 0. 28,P = 0. 00. Conclusion The thickness of intumescent lens became thicker as axial length increased,and this phenomenon in patients with combined axial high myopia was more obvious. Too large lens may become another risk factor for capsular relaxation.%目的研究轴性高度近视白内障和非近视性白内障患者眼轴长度与晶状体厚度的相关性，分析其间可能存在的联系。方法收集2002年5月至2014年5月进行白内障手术的轴性高度近视患者200例作为高度近视组，以及非近视白内障患者200例作为对照组，两组患者均为白内障膨胀期患者。术前应用 A 超声仪测量两组患者的眼轴长度及晶状体厚度，并进行对比分析两组晶状体厚度差异以及两组眼轴长度与晶状体厚度的相关性检验。结果高度近视组平均眼轴长度（29.08±1.84 mm），明显高于对照组（23.37±1.35 mm）（ P ﹤0.05）。高度近视组平均晶状体厚度（6.33±0.42 mm）明显高于对照组（5.33±0.4 mm）（ P ﹤0.05）。高度近视组晶状体厚度与眼轴长度呈明显的正相关（ ；r ＝0.662，P ﹤0.05）。对照组晶状体厚度与眼轴长度呈明显的正相关（ r ＝0.28，P ﹤0.05）。结论白内障患者膨胀期晶状体厚度会随着患者眼轴增长而变厚，且合并轴性高度近视患者增厚更为明显，膨胀过大的晶状体可能成为囊袋松弛的另一危险因素。
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