Posted 4/13/2015 11:23 AM (GMT -7)
Many of us have had the flashing in our vision field, i just read a very good explanation of this on a Excedrin
wed site its at www.Excedrin.com
These are described as pre-migraine and the pain follows about 20 minutes after the onset of the aura.
I hope it helps because i had never heard of this when mine started and i thought "brain tumor", it has nothing
to do with anything except some degree of migraine, Peace