141 results
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
a sudden onset anisocoria ... the exception of anisocoria ... evaluation of anisocoria ... would suggest oculomotor ... nerve palsy.
Right Oculomotor (CNIII) Palsy caused by Stroke

Dr. Bruno Farnetano @bruno.farnetano

#Oculomotor #CNIII #Palsy #clinical #video #CN3 #clinical
Right Oculomotor ... (CNIII) Palsy caused ... bruno.farnetano #Oculomotor ... #CNIII #Palsy #
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
Anisocoria Evaluation ... If anisocoria iS ... - Physiologic Anisocoria ... - CN III Palsy ... Iris Damage #Anisocoria
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
Anisocoria - Pupillary ... Physiological - Simple Anisocoria ... ( Anisocoria ... pilocarpine • Oculomotor ... Idiopathic #Anisocoria
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... #CNIII #CN3 #Palsy ... #Oculomotor #Nerve
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill (Oculomotor ... ) Nerve Palsy ... Trochlear) Nerve palsy ... Abducens) Nerve palsy
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Status - Consider Oculomotor ... cranial nerve) Palsy
Horner's Syndrome
 • Anhidrosis: Diminished sweating of ipsilateral face and neck
 • Miosis: Loss of sympathetic
comparison to oculomotor ... nerve palsy (levator
Anisocoria algorithm - Solid arrows indicate recommended approaches to diagnosis. Dotted arrows indicate optional workup. 

#Anisocoria
Anisocoria algorithm ... #Anisocoria #algorithm
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Diagnosis: • CN Ill Palsy ... • Physiologic Anisocoria