方法：采用病例对照研究，选择2011-10/2012-09就诊我院眼科门诊40岁以上排除其它疾患的白内障患者300眼，分为高度近视组(150眼，眼轴≥26.0mm)和对照组(150眼，眼轴21.0～24.0mm)，比较两组之间白内障亚型与白内障的密度。

结果：核性白内障在高度近视组更常见于对照组(P<0.05)，并且高度近视组白内障的核密度更高。混合型白内障更常见于对照组(P<0.05)。皮质性白内障和后囊下白内障两组差异无统计学意义(P>0.05)。高度近视组核密度高于对照组(P<0.01)。

结论：核性白内障与高度近视是相关的。在高度近视组白内障的密度更高。

METHODS: An observational case-control study of 300 eyes of ophthalmological outpatients, more than 40 years old, was undertaken. All the patients were divided into high myopia group(axial length≥26.0mm)(n=150 eyes)and control group(axial length: 21.0mm-24.0mm)(n=150 eyes). The cataract type and cataract density between the two groups were compared.

RESULTS: Nuclear cataract was more frequently encountered in high myopia group(P<0.05), and also nuclear cataract density was higher than control group. Mixed type cataract was more commonly found in control group(P<0.05). There was no statistical significant difference in cortical cataract and posterior subcapsular cataract between two groups(P>0.05). Nuclear density in high myopia group was higher than control group(P<0.01).

CONCLUSION: There is a correlation between nuclear cataract and high axial myopia. Cataract density in the high myopia group is higher.