使遗传性疾病降低残废率的重要环节之一是疾病的早期发现和于其临床前期进行预防性治疗。眼的周边部色素性脉络膜视网膜营养不良症属于广泛播散性病变。这种病除对患者进行系统的临床观察外,视网膜电流图是重要检查方法之一。视网膜电流图的出现或缺失在相当大程度上与周边部色素性脉络膜视网膜营养不良症的遗传类型密切有关:遗传显性型常能描出视网膜电流图,其波低于正常;隐性型常谓无波或为微小波。通常患者来诊时常已发生眼底变化和视功能 One of the most important steps in reducing the rate of disability of genetic diseases is the early detection of the disease and the prophylactic treatment in its preclinical phase. Peripheral ocular chorioretinal dystrophy is a widespread disseminated disease. This disease in addition to the systematic clinical observation of patients, the retinal current pattern is one of the important inspection methods. The appearance or absence of retinal current pattern is largely related to the genetic type of peripheral choroidal retinal dystrophy: the genetic dominant type can often depict the retinal current pattern, the wave is lower than normal; the recessive type often No wave or micro-wave. Occasionally, patients often visit the fundus changes and visual function