Professor of Neurology, School of Medicine, CASE Western Reserve University, University Hospitals - Case Medical Center, Cleveland, Ohio
Subject
Internuclear Ophthalmoplegia
Description
Lesions of the MLF cause an INO, which manifests as ipsilateral palsies of adduction, and nystagmus of the contralateral abducted eye. Vertical gaze is preserved. Inducing optokinetic nystagmus so that the adducting eye is responsible for the fast phase, causes a dissociation between the two eyes, and is useful in uncovering subtle INOs.