18 results
Pupils: Localization in Coma
 • Small, Reactive pupils: Metabolic coma.
 • Unilateral Fixed, dilated pupil :
Pupils: Localization ... Small, Reactive pupils ... herniation, PCOM aneurysm ... #Coma #Neurology ... #differential #diagnosis
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
Argyll Robertson Pupil ... small (1-2mm) pupil ... - Light-near dissociation ... #neurology #diagnosis ... #ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
6mm); • Light-near ... females Differential Diagnosis ... - no light-near ... #PhysicalExam #neurology ... #ophthalmology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... - Differential Diagnosis ... communicating artery aneurysm ... Fixed #Dilated #Pupil ... #neurology
Adie's Pupil on Physical Exam

Adie's pupil is a neurological disorder characterized by a tonically dilated pupil
Adie's Pupil on ... Physical Exam Adie's pupil ... accommodation (i.e., light-near ... clinical #video #ophthalmology ... #neurology #syndrome
Neuro-OphthaImoIogy - Visual Field Defects - Localization Map
 - Optic Nerve Lesion (Monocular vision loss)
 -
Neuro-OphthaImoIogy ... glioma • Aneurysm ... NeuroOphthaImoIogy #Neurology ... #Differential #Diagnosis ... Anatomy #Causes #Ophthalmology
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
• Light-near dissociation ... (tectal pupils) ... Parinauds #syndrome #neurology ... #diagnosis
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
- Differential Diagnosis ... • Neurologic ... Migraine is a diagnosis ... large/unreactive pupil ... Algorithm #Causes #Ophthalmology
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
Adie’s Tonic Pupil ... slightly reduced near ... lights with light near ... clinical #video #ophthalmology ... #physicalexam #neurology
Intracerebral hemorrhages (ICH) - Subdural, Epidural, Subarachnoid Comparison

Subdural hematoma 
• Crescent-shaped 
• Blood collection between dura
dura matter • Tear ... Rupture of berry aneurysm ... Subarachnoid #Comparison #Neurology ... #Diagnosis