Tags: Disease.
Internuclear ophthalmoplegia (INO) is a disorder of conjugate lateral gaze in which the affected eye shows impairment of adduction. When an attempt is made to gaze contralaterally (relative to the affected eye) the affected eye adducts minimally if at all. The contralateral eye abducts however with nystagmus. Additionally the divergence of the eyes leads to horizontal diplopia.
