Blurry vision, ghost images and nighttime halos around lights all can be warning signs of eye problems. 1  A flood of spots and floaters in your field of vision. 2  A sensation that a dark curtain has settled across your field of view. 3  Sudden eye pain, redness, nausea and vomiting.  Double vision, double images or ghost images.
MR Angiography (MRA) MR angiography (MRA) uses a powerful magnetic field, radio waves and a computer to evaluate blood vessels and help identify abnormalities or diagnose atherosclerotic (plaque) disease.
Because MRA scans look at the body's blood vessels, they are well suited to examining arteries in the brain, neck, chest, and abdomen and stomach. MRA scans are typically used for the following reasons: To find bulges (aneurysms), clots, or buildups of fat and calcium deposits in the blood vessels leading to the brain.