Bielschowsky test

external

• Synonyms

  • Parks�Bielschowsky three-step test

• Causes

  • Trochlear nerve palsy

• Description

  • "Tipping the patient�s head from shoulder to shoulder to see if this improves or exacerbates double vision
  • as will be the case when the head is respectively tilted away from or toward the affected side in a unilateral trochlear (IV) nerve lesion. "