I have tried the log the foods I eat and all the other routines to find a cure... was even willing to give up lobster if that was a trigger. Alas - so far, no solve. Ed# In a message dated 9/25/2015 12:22:15 A.M. US Mountain Standard Time, dave.g4ugm at gmail.com writes: Used to get the headaches with no visuals, but wearing the correct glasses and keeping my screen clean seems to have solved that, but since then, like Dwight, I have had a couple of attacks of the "lightening lines" and blurred vision. The eye hospital tell me that this is an "ocular migraine" and I can concour its really strange and somewhat scary especially for the first time... Dave G4UGM with with