33 results
Primary Downbeat Nystagmus on Ocular Examination

Primary downbeat nystagmus, most evident on looking down and out .
Nystagmus on Ocular ... on looking down and ... #Nystagmus #Ocular ... #clinical #video ... #physicalexam #neurology
Ocular Albinism and Nystagmus

#Ocular #Albinism #Nystagmus #clinical #video #ophthalmology #PhysicalExam #neurology
Ocular Albinism ... and Nystagmus ... #Ocular #Albinism ... #video #ophthalmology ... #PhysicalExam #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 ... #Ocular #PhysicalExam
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Differential Diagnosis Algorithm ... unidirectonal nystagmus ... • Meniere's Disease ... bidirectional nystagmus ... Dizziness #Vertigo #Neurology
Downbeat Nystagmus on Physical Exam

65 year old female with new walking difficulty and dizziness. Why downbeat
Downbeat Nystagmus ... Why downbeat nystagmus ... #clinical #video ... #ocular #ophthalmology ... #neurology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
Parinaud's syndrome ... Convergence retraction nystagmus ... sign • Vascular disease ... Dorsal midbrain and ... #neurology #diagnosis
Diagnostic Algorithm for Dizziness and Vertigo
Peripheral Vertigo:
 • Attacks: Sudden, severe, can last anywhere from seconds
Diagnostic Algorithm ... minutes to days • Nystagmus ... vascular causes • Nystagmus ... test Méniére's disease ... differential #diagnosis #neurology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Differential Diagnosis Algorithm ... cirrhosis, nephrotic syndrome ... Nausea, Pulmonary Diseases ... , CNS Disease, Meds ... #diagnosis #nephrology
Acquired Downbeat Nystagmus

This 62 yo AA female reported to clinic for retinal evaluation of diabetic PDR.
Acquired Downbeat ... A downbeat nystagmus ... anterior_seg_rocks #Downbeat ... #video #ophthalmology ... #physicalexam #neurology
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
desaturation, Scotoma, Ocular ... mainly AQP4-lgG disease ... mainly MOG-lgG disease ... (AQP4-lgG disease ... Manifestations #diagnosis #neurology