方法：选取我院2012-12/2015-01收治的增殖期糖尿病视网膜病变患者146例189眼作为观察组，对患者行常规眼部检查，经眼底荧光血管造影检测，将患者按眼底情况不同分成Ⅳ期、Ⅴ期与Ⅵ期，同时随机抽取糖尿病无视网膜病变患者146例292眼作为对照组，记录各组眼轴长度。

结果：观察组患者眼轴长度为22.03±0.92mm，对照组眼轴长度为24.14±0.78mm，两组相比，差异有统计学意义(t=7.272，P=0.024)。在观察组中患眼眼轴越长，糖尿病视网膜病变新生血管程度越轻，且为负相关。

结论：较长的眼轴长度对于糖尿病患者有保护作用，在临床工作中，测量糖尿病患者眼轴长度对于预测糖尿病视网膜病变有一定的指导意义。

METHODS:One hundred and forty-six cases(189 eyes)with proliferative diabetic retinopathy(PDR)from December 2012 to January 2015 in our hospital were chosen as the observation group. The patients were received routine eye examination. PDR at stage Ⅳ, Ⅴ or Ⅵ was divided through the fundus fluorescence angiography. At the same time, 146 cases(292 eyes)with diabetes without retinopathy were randomly chosen as the control group. The ocular axial length of the two groups was recorded.

RESULTS:The ocular axial length of observation group was 22.03±0.92mm, while that of the control group was 24.14±0.78mm, and the difference was statistically significant(t=7.272, P=0.024). In the observation group, the degree of retinal neovascularization was lighter when the ocular axial length was longer. There was negative correlation between degree of retinal neovascularization and axial length.

CONCLUSION:Longer axial length has a protective effect for DR in clinical work. Ocular axial length measurement can guide clinical work for predicting diabetic retinopathy.