The orbital CT scan and MR imaging showed an intra-conal cavernous hemangioma just adjacent to the optic nerve in the right orbit.

• 利用方格黑白反转视学诱发电位仪检查，两眼原位时，潜伏值及振辐值均属正常，但是在病人往上注视数秒后，左眼之结果仍正常，而右眼显示出潜伏值迟缓。