yeah eye pokes are really nasty and there are certain fighters who are pretty terrible about those open hands to the face.
Jake Shields was really bad about it versus GSP
John Jones really likes to do it defensively when he is getting punched or is backing up
Josh Kosheck is probably the worst offender I can think of - he does it constantly
I wonder if they have any regulations on maintaining short nails - I know several guys had problems with getting cuts from toenails and even infections from those when not properly taken care of.