I have occasional periods of patterns which are visible with eyes
open or closed,they seem to occur after I have been subject to bright lights,the first time I had such an attack was after standing near flashing fruit machines in a motorway servie area,I found that by lying down and resting with my eyes closed or even covered seemed to relieve the symptoms and after a while I was able to focus properly and continue driving,I never have had headaches with this but feel really out of sorts during the period of the patterns.I had such a session this morning after using my computer but dark glasses and a rest cleared the patterns away
