16 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
CN VI (Abducens ... One-and-a-half Syndrome ... ophthalmology #neurology ... #differential #diagnosis ... #ocular
Left Abducens Palsy on Ocular Examination

Dr. Sebastian Vega @oftalmopo

#Abducens #Palsy #CN6 #CNVI #Ocular #PhysicalExam #clinical #video
Left Abducens Palsy ... on Ocular Examination ... #Palsy #CN6 #CNVI ... #Ocular #PhysicalExam ... ophthalmology #Neurology
Traumatic Lateral Rectus Palsy on Ocular Examination

Impaired left lateral eye movement with left gaze after MVA.
Lateral Rectus Palsy ... on Ocular Examination ... #Abducens #CNVI ... #CN6 #Ocular #physicalexam ... clinical #video #neurology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... cirrhosis, nephrotic syndrome ... Pulmonary Diseases, CNS ... #nephrology #sodium
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Cover - Uncover Test Revealing CNVI Palsy

Here the Cover-Uncover test unmasks subtle right CN VI palsy.
Revealing CNVI Palsy ... #CN6 #Abducens ... clinical #video #neurology ... ophthalmology #ocular ... #physicalexam
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... females Differential Diagnosis ... : • CN Ill Palsy ... dissociation • Other causes ... #neurology #ophthalmology
Left Abducens Spasm on Physical Exam

A 50 yr male with left facial spasm and diplopia, with
paroxysmal brainstem syndrome ... #Spasm #CNVI #CN6 ... #PhysicalExam # ... clinical #ocular ... ophthalmology #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
- Differential Diagnosis ... CN III palsy 2. ... Neurogenic Ptosis - Neurologic ... • Third nerve palsy ... #Ptosis #neurology
One and a Half Syndrome on Physical Exam

This 28 year old patient presented to clinic with
fasciculus), which causes ... The most common causes ... the hospital, diagnosed ... #PhysicalExam # ... ophthalmology #neurology