Ｄｅｖｉｃ病是一种以视神经与脊髓有大块的脱髓鞘为特征的脱髓鞘疾病。国内并非十分少见，但家系报告尚不多见，本文兄妹均患Ｄｅｖｉｃ病，现报告如下：１临床资料例１男，１９岁，双眼视力下降，行走不稳，行走困难３年，缓解与复发交替。查体：神清，双眼近视力右０．... Devic disease is a demyelinating disease characterized by massive demyelination of the optic nerve and spinal cord. Domestic is not very rare, but the family report is rare, the brothers and sisters are suffering from Devic disease, are as follows: 1 clinical data 1 male, 19 years old, decreased binocular vision, walking unstable, difficult to walk for 3 years, ease and relapse alternately. Physical examination: God clear eyes near my right eye 0. ...