I had like a sudden panic attack, and my L- eye went blind for a few minutes and some blurred vision occurred simultaneously. Have had blurred vision attacks for the last 15 years and they subside after taking aspirin and lying down within 15 minutes, but the loss of vision in the L-eye was scary, never happened before? . I have Chondrosarcoma of the base of the skull, which was resected twice, in 1999 and 2011 plus cyber-knife radiation treatment in 2014. What s causing the total blindness? Lack of circulation , a short circuit in the nerves? What s your prognosis? Probably something I don t want to hear!!!! I m 78, but very active and independent. Thanks.