Neuro-ophthalmological findings are common and occasionally prominent features in movement disorders. Accordingly,careful evaluation of the ocular motor functions may provide valuable information in early detection of the diseases andmonitoring of the progression. Furthermore, accurate assessment of the abnormal ocular motor findings aids in understandingthe pathophysiology and mechanisms of the movement disorders, and in their differential diagnosis. Ocular motility examinationshould include bedside evaluation and laboratory recording of the fixational abnormalities, saccades, smooth pursuit, thevestibulo-ocular reflex, optokinetic nystagmus, and vergence eye movements. In this review, we will discuss various ocularmotor findings in ataxia and parkinsonian syndromes, and hyperkinetic movement disorders.
