Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
How are you? It is good that your CT and MRI were fine. It is uncommon to have a halo in your line of vision. Were you able to have this checked by a opthalmologist? Further evaluation may need to be done. Take care and do keep us posted.