Subject: Neuroscience/Opthomology Phenomena following trauma

 A few years ago, a blow to back of head resulted in a 
most interesting experience. 5 minutes after impact, I noticed my 
eyesight was affected; an area in my field of vision in which 
printed words became unintelligible to me... I was unable to read 
words in a specific area of my field of vision, but capable of 
reading text outside this field.
  En route to hospital, I noticed the area was pie-shaped and 
swivelled around point located directly in centre of vision... 
like sweep area of a radar scope. Text or print within this area 
became unrecognizable (what I assume dyslexia might be like).
This area rotated very slowly and I estimate a complete 360 
degree turn in approximately one hour. After which my vision 
returned to normal.
   Can this be explained?

Re: Neuroscience/Opthomology Phenomena following trauma