30 results
Localizing Extraocular Movement Disorders
 • CN Ill (Oculomotor) Nerve Palsy 
 • CN IV (Trochlear) Nerve
Nerve Palsy • CN ... Nerve palsy • CN ... One-and-a-half Syndrome ... ophthalmology #neurology ... differential #diagnosis #ocular
Approach to an Eye Exam

1. History
2. Obvious Physical Trauma
3. Initial Assessment
  A. Visual Acuity
Ocular Movements ... (CN 3, 4, 6) ... Cornea D. ... Blood Vessels #Ocular ... Ophthalmology #PhysicalExam
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
CNS Ring-Enhancing ... Diagnosis- Compatible syndrome ... + toxo IgG • CNS ... diagnosis #causes #radiology ... #neurology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
CN III palsy 2. ... Neurogenic Ptosis - Neurologic ... lens wearing • Ocular ... #Ptosis #neurology ... ophthalmology #ocular
Neuromyelitis Optica (NMO) - Clinical Manifestations
 • Optic neuritis: Reduced visual acuity, ranging from mild to
desaturation, Scotoma, Ocular ... Other brainstem syndromes ... pain • Extra-CNS ... erythematosus, Sjögren syndrome ... Manifestations #diagnosis #neurology
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
ulceration • Ocular ... skin injury) • Neurologic ... basal ganglia, CNS ... spondyloarthritis • Ocular ... Leukemia, Lymphoma Ocular
Left Abducens Palsy on Ocular Examination

Dr. Sebastian Vega @oftalmopo

#Abducens #Palsy #CN6 #CNVI #Ocular #PhysicalExam #clinical #video
Abducens Palsy on Ocular ... Abducens #Palsy #CN6 ... #CNVI #Ocular # ... PhysicalExam #clinical ... ophthalmology #Neurology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Abduction - C5,C6 ... hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Myotomes #diagnosis #neurology ... sensory #motor #arm #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
• Biceps - C5, C6 ... • Triceps - C6 ... • Cauda Equina Syndrome ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... Diagnosis: • CN ... #Adies #Pupil #PhysicalExam ... #neurology #ophthalmology