6 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
Anisocoria - Pupillary Defects - Differential Diagnosis Algorithm

Physiological - Simple Anisocoria ( <O.5mm)
 - Anisocoria equal
- 10% cocaine: pupils ... Tonic (Adie's) Pupil ... #Pupils #Defects ... #Algorithm #Causes ... #Ophthalmology
Unilateral Fixed Dilated Pupil - Differential Diagnosis Framework
If Altered Mental Status - Consider Oculomotor (3rd cranial
Fixed Dilated Pupil ... (3rd cranial nerve ... ) Palsy: • Brain ... no neurological cause ... Fixed #Dilated #Pupil
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Adie's Pupil What ... mildly dilated pupil ... Syndrome: • Adie's Pupil ... : • CN Ill Palsy ... of tonic pupil
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
• CN VI palsy ... ptosis with CN Ill palsy ... large/unreactive pupil ... #Algorithm #Causes ... #Ophthalmology
Orbital Apex Syndrome secondary to Herpes Zoster Ophthalmicus (HZO)

This 81 yo male was referred to our
a non-reactive pupil ... other potential causes ... fissure and optic canal ... the optic nerve, oculomotor ... clinical #video #ophthalmology