<prompt> Disscociated vertical deviation seen inVertical on looking upHorizontal on looking inVertical on looking downHorizontal on looking out  <response>: Diplopiaseeing doubleis a symptom with many potential causes, both neurological and .This group of patients may also describe palinopsiamultiple images .However, other causes of an apparent superior oblique palsy such as .The optokinetic system cannot be properly assessed at bedside because the OKN 