10 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Localizing Extraocular ... • CN VI (Abducens ... @caseyalbin #Extraocular ... #Localization #ophthalmology ... #differential #diagnosis
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... Horner's syndrome • Extraocular ... @neudrawlogy #CNIII ... #CN3 #Palsy #Oculomotor ... Cranial #neurology #diagnosis
Anisocoria Evaluation Flow Chart - Differential Diagnosis
1. Check pupillary reaction to light 
2. Measure pupil size.
- Differential Diagnosis ... Anisocoria - CN ... III Palsy - Pharmacologic ... Anisocoria #Evaluation #Algorithm ... #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
females Differential Diagnosis ... : • CN Ill Palsy ... - abnormal ... extraocular movements ... PhysicalExam #neurology #ophthalmology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
CN VI palsy ... Ill palsy ... Myasthenia Gravis Extraocular ... large/unreactive pupil ... #Ophthalmology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- Differential Diagnosis ... Algorithm Physiological ... Fascicle (Other CN ... #Algorithm #Causes ... #Ophthalmology
Cover - Uncover Test Revealing CNVI Palsy

Here the Cover-Uncover test unmasks subtle right CN VI palsy.
Revealing CNVI Palsy ... (Normal) 3. ... (Abnormal) This ... #CN6 #Abducens ... video #neurology #ophthalmology
Signs and Symptoms Associated With Different Headache Etiologies
 • Nonfocal mental status changes - Meningitis, encephalitis,
Hypertension with normal ... poorly reactive pupils ... with third nerve palsy ... movement deficits (CN ... #differential #diagnosis
Ptosis - Differential Diagnosis Framework

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