This isn't news, by the way. If you go back to when she was recovering from her concussion/clot/stroke/aneurysm/tumor or whatever it was that felled her in 2012, you'll find plenty of photos showing her wearing glasses with a special prismatic lens on the left side that's designed to correct this sort of thing.
She moves her head to the right trying to hide it when that eye goes haywire. Does the same when she has those spasms.
Her left eye pegs to the right for a split second about 20 times a minute. Watch the videos carefully. If this person happened to be my worst enemy I'd advise them to go to the hospital at least an hour ago.