I have had the similar condition where I had a blurred spot in an arch shape in my visual field, but mine also contains flashing lights and pushes out toward the edge of my vision before going away. It takes mine about 30 to 40 minutes to go away sometimes. I don't have high blood pressure that I know of, but what do you make of this condition. I don't get a headache afterward either. I see the eye doctor once a year and get my eyes dialated and have told him about this phenomenon. I can tell you that I am a coffee drinker and sometimes will drink coffee through the day without eating or drinking water, but not sure if it relates. What could cause this?View Thread