Unilateral inter-nuclear ophthalmoplegia is associated with:
A. Reduced adduction on the affected sideB. Reduced convergence
C. Nystagmus on abduction in the affected side
D. Diplopia can occur
E. There is abnormal optico-kinetic nystagmus
Ans. A,D,E
Unilateral
internuclear ophthalmoplegia:
• Results from a
lesion in the medial longitudinalfasciculus between the sixth nerve and third
nerve nuclei
• Causes failure
of the ipsilateral medial rectus to adducton horizontal gaze
• There is nystagmus
of the contralateral abducting eye(caused by excessive innervation to the
normal lateralrectus in accordance with hering's law)[