17 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
Pathogenesis and Ocular ... production -> Corneal ... Xerophthalmia - abnormal ... conjunctiva and cornea ... #Xeropthalmia #pathophysiology
Normal Lens on Ocular POCUS

Dr. Michael I. Prats @PratsEM

#Lens #Normal #Ocular #POCUS #clinical #ophthalmology #ultrasound #labeled
Normal Lens on Ocular ... POCUS Dr. ... Prats @PratsEM #Lens ... #Normal #Ocular ... #POCUS #clinical
Chronic Vision Loss by Anatomic Location - Differential Diagnosis Algorithm
Cornea:
 • Keratoconus
 • Stromal Scaring
 •
Differential Diagnosis Algorithm ... Cornea: • Keratoconus ... • Pterygium Lens ... • Age Related Macular ... Differential #Diagnosis #Algorithm
Hyperopia: Pathogenesis and clinical findings
 • Axial length of eye -> Short axial length of the
are focused • Abnormal ... of the eye (ex. cornea ... , lens) -> Decreased ... Light rays require less ... #Hyperopia #pathophysiology
Normal eye - Anterior chamber (a): Located between hyperechoic cornea anteriorly and iris posteriorly Lens (L):
Normal eye - Anterior ... between hyperechoic cornea ... iris posteriorly Lens ... Clinical #EM #Ophth #POCUS ... #Ocular #Normal
Astigmatism: Pathogenesis and clinical findings
Astigmatism - deviation from spherical curvature of the lens or eye

Refracting power
curvature of the lens ... rule astigmatism: cornea ... different points of focus ... • Headache • Ocular ... #astigmatism #pathophysiology
Ptosis - Differential Diagnosis Framework

Ptosis (Greek- to fall) Drooping of the upper eyelid that usually results
nerve palsy • Horner ... change • Contact lens ... wearing • Ocular ... effect of some abnormal ... Chalazion • Contact lens
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
• Mutism Pathophysiology ... the bilateral cortex ... light reflex • Corneal ... • Vestibulo-ocular ... movements; also normal
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... prognosis • Nodular ... can have extra nodal ... Classification #pathophysiology ... #differential #algorithm
Guillain-Barre Syndrome - Summary

Acute AIDP that presents with rapidly progressive flaccid weakness

Epidemiology:
 • 1-2 cases/100,000 per
Guillain-Barre Pathophysiology ... Weakness: Starts in legs ... Reflexes: Arms or legs ... cardiomyopathy, Horner ... CSF PROTEIN - NORMAL