11 results
CN III Palsy - Oculomotor Nerve
 • Ptosis: Loss of innervation of the levator palpebrae superior.
CN III Palsy - Oculomotor ... oblique • Dilated Pupil ... innervation to pupil ... #Cranial #neurology ... #diagnosis
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... cranial nerve) Palsy ... no neurological cause ... Fixed #Dilated #Pupil ... #neurology
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- 10% cocaine: pupils ... Tonic (Adie's) Pupil ... Anisocoria #Pupillary #Pupils ... #Algorithm #Causes ... #Ophthalmology
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... mildly dilated pupil ... : • CN Ill Palsy ... of tonic pupil ... #ophthalmology
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Disorders • CN Ill (Oculomotor ... Skew Deviation Casey ... #Localization #ophthalmology ... #neurology #differential ... #diagnosis #ocular
Adie’s Tonic Pupil on Physical Exam

A young female was referred in for a sudden onset anisocoria.
Adie’s Tonic Pupil ... Adie’s tonic pupil ... , the affected pupil ... Failure of the pupil ... nerve palsy.
Wernicke's Encephalopathy 
CLINICAL TRIAD: only seen in 1/4 pts 
W.E. is often under diagnosed 
1. ENCEPHALOPATHY
is often under diagnosed ... OCCULOMOTOR DYSFUNCTION ... , INO, Unequal Pupils ... dissociation, Nonreactive pupils ... #triad #neurology
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... • Neurologic ... large/unreactive pupil ... #Ophthalmology
All About Horner's Syndrome

Horner's syndrome, known as 
"oculosympathetic paresis" by people 
who don't have friends, is
have friends, is caused ... (constricted pupil ... Syndrome #Overview #Ophthalmology ... #Diagnosis #Neurology
Horner's Syndrome on Physical Exam

A 75yoF was referred in for facial swelling and eyelid changes 1
consistent with a diagnosis ... experience, the cause ... how the right pupil ... clinical #video #ophthalmology ... #physicalexam #neurology