<unk>  is involuntary eye movement that can be part of either the vestibulo-ocular reflex (VOR) or a pathological process. It is characterized by alternating smooth pursuit in one direction and saccadic movement in the other direction.
Nystagmus
Oscillopsia
Mydriasis
Ophthalmoparesis
Carotidynia
Ptosis
Ptosis 
Conjugate gaze palsy