Cranial optokinetic reflex and cervical dystonia

Abstract: A 45-year-old female presented with acute cervical dystonic myotonic spasms and pain of two-day duration, unresponsive to acupuncture and physical therapeutic interventions. Initially her optokinetic reflex system was stimulated to increase dopamine activity related to specific left mesencephalic ocular stimulation. This required an optokinetic strip motion from the subject’s right upper visual field diagonally directed toward their left lower visual field. Directing the optokinetic strip on the diagonal was selected by the extraocular muscles innervation pathways. The selection of diagonal right upper to left lower optokinetic activation was specifically chosen to increase the activation and collateral stimulation of the ascending left mesencephalic reticular system and dopaminergic generating centers. This action was intended to regulate and modulate control through the left cerebral cortical-striatal pathways and through the descending medial longitudinal fasciculus to regain inhibitory balance to the output of her right cervical ventral horn cells. Completion of the intervention was determined when her symptoms were reduced by approximately 75%. Home exercises consisted of a download application of optokinetic strips into her iPhone with instructions to direct the optokinetic stimulus diagonally down and away from the side of cervical tension

Indexing Terms: Cervical Dystonia, cranial, optokinetic reflex, optokinetic strip motion

Cite: Pick M. Cranial optokinetic reflex and cervical dystonia [Case Report]. Asia-Pac Chiropr J. 2021;1.3:Online only. URL


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