This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

Nearly 3,000 illustrations, including video clips of neurologic disorders.
Every article is reviewed by our esteemed Editorial Board for accuracy and currency.
Full spectrum of neurology in 1,200 comprehensive articles.
Listen to MedLink on the go with Audio versions of each article.

Internuclear ophthalmoplegia in multiple sclerosis

Often crucial in diagnosing multiple sclerosis and nearly pathognomonic, internuclear ophthalmoplegia consists of ipsilateral (to the direction of gaze) nystagmus and contralateral medial rectus weakness on lateral gaze. The traditional method to elicit this phenomenon, slowly following an examiner's finger, can miss medial rectus weakness. (Contributed by Dr. Anthony Reder.)