I ve been having visual disturbances for about 1 year. I have migraines and normally occur with scintillating scotoma. The sx began with a migraine. I have floaters in my right eye. I also see fast moving white dots when looking at a clear background such as the sky. The sx are similiar to visual snow. I have no history of drug use. I also see random yellow like light dots occassionally shoot across my visual field. I had a normal MRI in 2008.