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.
MRA stands for Magnetic Resonance Angiography, a special type of MRI that looks at blood vessels and blood flow in virtually any part of the body with or without injection of contrast. A major advantage of MRA is that it can be performed as a non-invasive procedure which has little risk of complications in comparison with conventional angiography or other related procedures.