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目的:探讨糖尿病是否是导致青光眼倍频视野计(FDT)视野检查中假阳性的潜在因素。方法:对无白内障或青光眼的30例正常人(健康组)和50例糖尿病患者(糖尿病组)进行FDT(C-20-5)检查,并进行对比,FDT计分方法采用四个象限计分(0~87分)。结果:糖尿病组20例(40%)和健康组2例(6.67%)FDT视野异常,其中7例糖尿病患者无视网膜病变。糖尿病组FDT计分为5.73±8.2,检测时间(58.13±24.07)s;健康组依次为1.05±3.46(P<0.01)和(46.75±4.42)s(P<0.05),即均前者高于后者。结论:部分糖尿病包括一些无明显视网膜病变的患者FDT视野是异常的,其异常的FDT视野不一定代表青光眼性视野丢失,糖尿病可能是导致青光眼FDT视野筛查中假阳性的因素。
Objective: To investigate whether diabetes is a potential factor leading to false positives in glaucomatous frequency doubled fluoroscopy (FDT) visual field examination. Methods: FDT (C-20-5) was performed on 30 normal subjects (healthy group) and 50 diabetic patients (diabetic group) without cataracts or glaucoma. The FDT score was scored using four quadrants (0 to 87 minutes). Results: Twenty patients (40%) in diabetic group and 2 patients (6.67%) in healthy group had abnormal FDT visual field. Seven diabetic patients had no retinopathy. The FDT score of diabetic group was 5.73 ± 8.2 and the detection time was 58.13 ± 24.07 s. The healthy group was 1.05 ± 3.46 and 46.75 ± 4.42 s respectively (P <0.05), that is, the former was higher than the latter By. Conclusion: FDT visual field is abnormal in some diabetes mellitus, including some patients without obvious retinopathy. The abnormal FDT visual field does not necessarily mean the loss of glaucomatous visual field. Diabetes mellitus may be the cause of false positive in screening glaucoma FDT visual field.