17 results
Convergence Retraction Nystagmus with a left 6th nerve palsy

Caused by a Midbrain hemorrhage

Dr. Boby Varkey Maramattom
Convergence Retraction Nystagmus ... nerve palsy Caused ... Convergence #retraction #nystagmus ... physicalexam #clinical #video ... #neurology #ophthalmology
Causes of Dizziness - Vertigo - Differential Diagnosis Algorithm
True Vertigo - Illusion of Rotary Movement
Peripheral Vestibular
Differential Diagnosis Algorithm ... unidirectonal nystagmus ... bidirectional nystagmus ... • Transient Ischemic ... Differential #Diagnosis #Algorithm
Diabetic Retinopathy: Pathogenesis and clinical findings

Mild Non-proliferative DR
 • Outpouchings of the weakened capillary walls or
re-vascularize the ischemic ... Localized retinal ischemia ... causes upregulation ... Retinopathy #Diabetes #ophthalmology ... complications #pathophysiology
Seesaw Nystagmus 

Sawtooth or seesaw nystagmus is an unusual but characteristic type of nystagmus. Typically there
Seesaw Nystagmus ... We have varied causes ... The video was provided ... physicalexam #clinical #video ... #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Differential Diagnosis Algorithm ... a mass as the cause ... Cannot Abduct • Ischemia ... Differential #Diagnosis #Algorithm ... #Causes #Ophthalmology
Hyperkalemia Differential Diagnosis Algorithm
R/O Pseudo-hyperkalemia:
 • Possible Lab error! Alwavs Repeat Blood sample!
 • Leukocytosis, Thrombocytosis:
Differential Diagnosis Algorithm ... drawing blood (ischemia-induced ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #high #pathophysiology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Differential Diagnosis Algorithm ... Optic Neuritis • Ischemic ... Differential #Diagnosis #Algorithm ... #Causes #Ophthalmology
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
hyalinization causes ... fluffy white ischemic ... Elschnig's Spots • Ischemia ... #Retinopathy #pathophysiology ... #ophthalmology
Seesaw nystagmus 
-> eye move in an opposed vertical fashion (one goes up while the other
Seesaw nystagmus ... commonly parasellar masses ... Video by Kathleen ... #ophthalmology ... #clinical #video
Vertical Nystagmus on Slit Lamp Ocular Examination

Often an indicator of a central lesion. This patient was
Vertical Nystagmus ... found to have an ischemic ... By Ophthalmology ... PhysicalExam #clinical #video ... #ophthalmology