41 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill (Oculomotor ... One-and-a-half Syndrome ... Skew Deviation Casey ... #Localization #ophthalmology ... #differential #diagnosis
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
- Differential Diagnosis ... Status - Consider Oculomotor ... cranial nerve) Palsy ... no neurological cause ... • Medication effects
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
- Differential Diagnosis ... Midbrain (Parinaud's Syndrome ... #Differential #Diagnosis ... #Algorithm #Causes ... #Ophthalmology
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
Differential diagnoses ... for the neuro-ophthalmologic ... Miller-Fisher syndrome ... #Differential #Diagnosis ... #Causes #Ophthalmology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
Anisocoria - Pupillary Defects ... - Differential Diagnosis ... pilocarpine • Oculomotor ... #Algorithm #Causes ... #Ophthalmology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
- Genetic defects ... - Hungry bones syndrome ... #Differential #Diagnosis ... Low #Magnesium #Table ... Classification #Causes
Thrombocytopenia and Pregnancy - TTP/HUS, HELLP Syndrome and Acute Fatty Liver of Pregnancy (AFLP)
Three syndromes in
TTP/HUS, HELLP Syndrome ... with coagulation defects ... child * Severe cases ... obstetrics #hematology #diagnosis ... #table #comparison
Hordeolum vs Chalazion

Hordeolum (Stye):
 • Location: Most commonly found at or near an eyelash follicle
 •
eyelash follicle • Cause ... upper lid • Cause ... #Clinical #Diagnosis ... #Management #Ophthalmology ... Chalazion #Comparison #Table
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... females Differential Diagnosis ... : • CN Ill Palsy ... dissociation • Other causes ... PhysicalExam #neurology #ophthalmology
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
involvement: Intractable nausea ... Other brainstem syndromes ... (e.g. oculomotor ... Motor and sensory deficits ... Manifestations #diagnosis