65 results
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Ptosis is severe in comparison ... innervation to pupil ... #Oculomotor #Nerve ... Cranial #neurology #diagnosis
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 # ... #physicalexam #ophthalmology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... - Differential Diagnosis ... Status - Consider Oculomotor ... cranial nerve) Palsy ... no neurological cause
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
- Differential Diagnosis ... Measure pupil size ... Anisocoria - CN III Palsy ... #Differential #Diagnosis ... #Ophthalmology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- Differential Diagnosis ... pilocarpine • Oculomotor ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill (Oculomotor ... ) Nerve Palsy ... Skew Deviation Casey ... #Localization #ophthalmology ... #differential #diagnosis
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... females Differential Diagnosis ... : • CN Ill Palsy ... dissociation • Other causes ... PhysicalExam #neurology #ophthalmology
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
- Differential Diagnosis ... Relative Afferent Pupil ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
Horner's Syndrome
 • Anhidrosis: Diminished sweating of ipsilateral face and neck
 • Miosis: Loss of sympathetic
Ptosis is mild in comparison ... to oculomotor nerve ... palsy (levator ... Horners #Syndrome #diagnosis
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
- Differential Diagnosis ... Framework Causes ... #differential #diagnosis ... #ophthalmology ... #causes