The optic nerveheads of most cases were atrophic.Visual field defects were various.VEP were usually unrecordable.Steroids were given in some cases, but the effect was not discernible.

• 这些病人的视神经乳头大部份都会萎缩，视野检查表现出各式各样的缺损，视觉诱发电位大部份都测不到，且类国醇药物的效果不彰。