8 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
CN VI (Abducens ... Iniury • One-and-a-half ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Diagnosis: • CN ... Ill Palsy - ... dissociation • Other causes ... #PhysicalExam # ... neurology #ophthalmology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
, T1 (median) Reflexes ... Conditions Erb's Palsy ... Saturday night palsy ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
CN VI palsy ... Ill palsy ... • Neurologic ... large/unreactive pupil ... #Ophthalmology
Cover - Uncover Test Revealing CNVI Palsy

Here the Cover-Uncover test unmasks subtle right CN VI palsy.
And the left eye ... #CN6 #Abducens ... clinical #video #neurology ... #ophthalmology ... #ocular #physicalexam
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
In this case, the ... oculomotor nerve palsy ... clinical #video #ophthalmology ... #physicalexam # ... neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
Pupils: • Anisocoria ... myoclonic movements, tremors ... Casey Albin MD @ ... caseyalbin #PhysicalExam ... #neurology #comatose
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
a non-reactive pupil ... other potential causes ... trochlear nerve, abducens ... #physicalexam # ... neurology