Does Inferior Oblique Muscle Overaction Affect Ocular Vestibular Evoked Myogenic Potentials?

Objectives: Inferior oblique muscle overaction (IOOA) is a common ocular motility disorder. Ocular Vestibular Evoked Myogenic Potentials (oVEMP) are tests that evaluate the reflex pathway between utricular macula and inferior to detect vestibular diseases. Our study of great importance as it first in literature effect on oVEMP parameters. Methods: Thirty-five patients with unilateral (IOOA group) 18 healthy volunteers without any neurological or vestibulocochlear disease were included this study. All evaluated oVEMP. Results: No statistically significant difference was found n1 latency, p1 n1-p1 latency measurement values participants (p>0,05). A amplitude patient groups (non-squint eyes, squint eyes) control (p-value 0.038). Conclusion: In IOOA patients, vestibulo-ocular may be affected, symptoms develop thus o-VEMP responses affected. careful anamnesis should taken kept mind amplitudes asymmetries significantly higher when performed Keywords: o-VEMP, Strabismus, overaction, Balance, Vertigo