Boby Varkey Maramattom @bobvarkey
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Lead consultant Neurologist, Aster Medcity, Kochi, India. Internal medicine faculty Royal college of UK https://twitter.com/bobvarkey
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Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
Convergence Retraction Nystagmus ... Convergence #retraction #nystagmus
Primary Downbeat Nystagmus on Ocular Examination

Primary downbeat nystagmus, most evident on looking down and out .
Primary Downbeat Nystagmus ... Primary downbeat nystagmus ... #Downbeat #Nystagmus
Convergence-Retraction Nystagmus on Physical Exam

Convergence-retraction nystagmus: irregular, jerky nystagmus, associated with convergence and retraction of both
Convergence-Retraction Nystagmus ... Convergence-retraction nystagmus ... irregular, jerky nystagmus ... Convergence #Retraction #Nystagmus
Downbeat Nystagmus on Physical Exam

65 year old female with new walking difficulty and dizziness. Why downbeat
Downbeat Nystagmus ... Why downbeat nystagmus ... DBN #Downbeat #Nystagmus
WEBINO on Ocular Examination

WEBINO = Wall-eyed bilateral internuclear ophthalmoplegia with Midbrain exotropia,  b/l ADduction impairment,
ABducting eye nystagmus ... evoked Upbeat nystagmus
One & a half syndrome with upbeat nystagmus due to a left pontine + bimedullary infarction

Dr.
syndrome with upbeat nystagmus
Spasmus Nutans on Ocular Examination

At first I thought it was Pendular But a closer look reveals
acquired form of nystagmus ... clinical triad of 1) nystagmus
Bilateral Internuclear Ophthalmoplegia (BINO)

Bilateral Internuclear ophthalmoplegia in chronic Multiple sclerosis. Note the adduction lag in the
Abducting eye nystagmus
Periodic Alternating Gaze (PAG) on Physical Exam

Periodic Alternating Gaze (PAG) is an involuntary continuous cyclic horizontal
Periodic alternating nystagmus ... spontaneous horizontal nystagmus
Spasmus Nutans on Ocular Examination

At first I thought it was Pendular But a closer look reveals
acquired form of nystagmus ... clinical triad of 1) nystagmus