糖尿病性黄斑水肿视力预后与FFA特征关系的探讨

Exploration of relationship between visual prognosis and character of FFA in DME

目的 探讨糖尿病性黄斑水肿视力预后与糖尿病性黄斑水肿的关系。方法 通过 171例 2 5 7眼糖尿病性黄斑水肿的眼底荧光血管造影图像 ,采用单因素和多因素的分析方法 ,分析黄斑水肿的分型 ,糖尿病视网膜病变的分期 ,拱环面积 ,渗漏来源 ,渗漏距黄斑中心凹的距离等因素与黄斑水肿视力预后的关系。结果 糖尿病性黄斑水肿的分型对视力预后影响最大 ,其次为糖尿病视网膜病变的分期和渗漏程度。在视力小于 0 .1的 38眼中囊样水肿 18眼 ,糖尿病视网膜病变 4期 2 2眼 ,渗漏距黄斑中心凹 5 0 0 μm内占 2 5眼。 结论 糖尿病性黄斑水肿分型的不同 ,视力预后亦不同 ;糖尿病视网膜病变愈重 ,其视力预后愈差。

Objective To explore the relationship between the character of FFA and the visual prognosis of diabetic macular edema(DME). Methods Fluorescein angiographies of each case were analyzed, including the classification of macula r edema, the stage diabetic retinopathy, the size of diabetic fovea avascular zo ne(FAZ), and the distance of leakage from central fovea of macular as well as of source of capillary leakage. Results The type of DME affected the visual prognosis more than the s tage of diabetic retinopathy and the exte nt of capillary leakage. When visual acuity was <0.1,cystoid edema was 47.4%,the 4t h stage of diabetic retinopathy was 57.8%, distance less than 500μ m within fovea of macular was 67.89%. Conclusion Different type of DME has different visual prognosis. The higher the stage of diabetic retinopathy is,the worse the visual prognosis is.