134 results
Primary Downbeat Nystagmus on Ocular Examination

Primary downbeat nystagmus, most evident on looking down and out .
Primary Downbeat ... nystagmus, most ... on looking down and ... #clinical #video ... #physicalexam #neurology
Classic Findings During Hallpike Test in Posterior Canal Benign Paroxysmal Positional Vertigo (BPPV)
 • Latency (delay
Positional Vertigo (BPPV ... torsional nystagmus ... nystagmus escalates ... testing #findings #signs ... #bppv #vertigo
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
Parinaud's Syndrome ... Convergence retraction nystagmus ... retraction (Collier's sign ... → "setting sun sign ... diagnosis #pineal #neurology
Characteristic eye movements found in Downbeat Nystagmus

Downbeat nystagmus (downward fast phase) is the most common of
Nystagmus Downbeat ... and rebound nystagmus ... Video by Kathleen ... Ophthalmology #Neurology ... #Clinical #Video
Characteristics of Peripheral and Central Vertigo
PERIPHERAL VERTIGO
 • Onset: Sudden
 • Intensity: Severe initially, often decreasing
than a minute for BPPV ... vestibular neuritis • Nystagmus ... circulation TIA • Nystagmus ... diagnosis #findings #signs ... symptoms #comparison #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... "setting sun" sign ... Dorsal midbrain and ... #neurology #diagnosis
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of posterior semicircular canal
Ocular Nystagmus ... in PSC BPPV after ... sudhir_kothari #Ocular #Nystagmus ... Maneuver #clinical #video ... ophthalmology #neurology
Ocular Nystagmus in PSC BPPV after Dix Hallpike Maneuver

This is a case of right posterior semicircular
Ocular Nystagmus ... in PSC BPPV after ... #BPPV #Posterior ... Maneuver #clinical #video ... ophthalmology #neurology
HINTS Exam - Distinguishing Central from Peripheral Vertigo
 • Head Impulse: Head thrust 10° with eyes
examiners nose • Nystagmus ... left, right, up and ... straight ahead, cover and ... Vertigo #diagnosis #neurology ... #bppv #comparison
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
minutes to days • Nystagmus ... Varies • No neurologic ... vascular causes • Nystagmus ... position change • Neurologic ... auditory findings BPPV