Sign Up for a Free Account

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.

Blink reflex in a patient with Bell palsy

Blink reflex in the described patient with left Bell palsy showing changes consistent with a left peripheral seventh nerve (efferent) lesion. With left-sided supraorbital stimulation, the ipsilateral R1 was delayed to 15.2 ms (right R1 was 11.7 ms), with prolongation of the ipsilateral R2 but a normal contralateral R2. With right-sided supraorbital stimulation the ipsilateral R2 was normal, but the contralateral was delayed. (Contributed by Dr. James Russell.)

Related Article

Related Media

Associated Disorders

  • AIDP
  • Acoustic neuroma (vestibular schwannoma)
  • Acute inflammatory demyelinating polyneuropathy
  • Diabetic neuropathies
  • Drug-induced disturbances of smell and taste
  • Hemifacial spasm
  • Herpes zoster oticus
  • Lyme disease
  • MS
  • Melkersson-Rosenthal syndrome
  • Migraine: clinical aspects
  • Multiple sclerosis: clinical aspects
  • NF2
  • Neurofibromatosis 2
  • Neurosarcoidosis
  • Neurosyplilis
  • Otalgia
  • PABP
  • Pregnancy: neuromuscular complications
  • RHS (Herpes zoster oticus)
  • Ramsay Hunt syndrome (Herpes zoster oticus)
  • Sarcoid neuropathy
  • Sjogren syndrome: neurologic complications
  • Sporadic schwannomas and neurofibromas
  • Traumatic cranial neuropathy
  • Tuberculosis of the CNS
  • Vestibular schwannoma