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.
Magnetic Resonance Angiography. If you or someone you love has had a blood clot, stroke, heart disease, or similar health problem, your doctor may recommend a magnetic resonance angiography (MRA) exam. Similar to magnetic resonance imaging (MRI), an MRA is a test that allows your doctor to view inside the body. More specifically, an MRA helps your doctor review the condition of your blood vessels.