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internuclear ophthalmoplegia (INO)

Etiology: 1) lesions of the medial longitudinal fasciculus 2) especially in association with multiple sclerosis Clinical manifestations: 1) failure of adduction (one eye) on horizontal gaze - nystagmus of abducting eye [2] 2) retention of convergence

Related

medial longitudinal fasciculus (MLF) multiple sclerosis (MS); includes clinically isolated syndrome

General

ophthalmoplegia (ophthalmoparesis)

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999
  2. Medical Knowledge Self Assessment Program (MKSAP) 19 Board Basics. An Enhancement to MKSAP19. American College of Physicians, Philadelphia 2022