9 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
• CN VI (Abducens ... ) Nerve palsy • ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
Diagnosis 1. ... Anisocoria - CN III Palsy ... Anisocoria #Evaluation #Algorithm ... #Differential # ... Diagnosis #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Young females Differential ... Diagnosis: • CN ... Ill Palsy - ... #PhysicalExam #neurology ... #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Diagnosis Algorithm ... • Neurologic ... large/unreactive pupil ... #Diagnosis #Algorithm ... #Causes #Ophthalmology
Cover - Uncover Test Revealing CNVI Palsy

Here the Cover-Uncover test unmasks subtle right CN VI palsy.
(Abnormal) This ... #CN6 #Abducens ... clinical #video #neurology ... #ophthalmology ... #ocular #physicalexam
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
Ptosis - Differential ... CN III palsy 2. ... effect of some abnormal ... #Differential # ... Diagnosis #ophthalmology
Strabismus - Ocular Misalignment - Differential Diagnosis Algorithm
Phoria:
 • Latent deviation
 • Symmetrical corneal light reflex,
Strabismus - Ocular ... Diagnosis Algorithm ... large/unreactive pupil ... #Diagnosis #Algorithm ... #Causes #Ophthalmology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
a non-reactive pupil ... acetate to help with ocular ... findings included abnormal ... trochlear nerve, abducens ... #physicalexam #neurology
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
consciousness Differential ... Diagnosis: • ... • Vestibulo-ocular ... Cough reflex Pupils ... #PhysicalExam #neurology