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观察糖尿病患者２５２例５０１只眼的眼底荧光血管造影，分析新生血管发生情况和视力预后。其中背景型３０２只限，增殖型１６２只眼，未发现病变者３７只眼。增殖型患者病程５年以下者占６．１％，５～１０年者占３１．０％，１０年以上者增至５４．６％。新生血管位于视网膜者１３６只眼，合并视盘新生血管者４９只眼。玻璃体出血５１只眼，占增殖型眼的３１．５％。本组患者视网膜新生血管共５１５簇，多分布在距视盘３～６ＤＤ的范围。有新生血管眼视力０．５以上者仅占２９．０％，而无新生血管者占６２．９％（Ｐ＜０．００５）。
Fundus fluorescein angiography was performed in 252 eyes of 501 diabetic patients and the neovascularization and visual acuity prognosis were analyzed. 302 of which only the background type, proliferation of 162 eyes, no lesions were found in 37 eyes. Patients with proliferative disease less than 5 years accounted for 6.1%, 5 to 10 years accounted for 31.0%, 10 years to 54.6%. Neovascularization was located in the retina of 136 eyes, optic disc neovascularization in 49 eyes. 51 eyes of vitreous hemorrhage, accounting for 31.5% of proliferative eye. The group of patients with retinal neovascularization total 515 clusters, and more distributed in the range of 3 ~ 6DD from the optic disc. Only 29.0% of patients with neovascular visual acuity of 0.5 or more, and no neovascular 62.9% (P <0.005).