15 results
Central retinal artery occlusion (CRAO). Positive "spot sign" on Ocular Ultrasound

78 yo M with sudden onset
Positive "spot sign ... " on Ocular Ultrasound ... Occlusion #Embolus #Clinical ... #POCUS #Ocular ... #Ultrasound
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
Pathogenesis and Ocular ... conjunctiva) • Bitot's spots ... #Xeropthalmia #pathophysiology ... #ophthalmology ... #diagnosis #signs
Drugs Used for the Treatment of COVID-19 Infection

** Editor Note (from ophthalmology MD input) - Hydroxychloroquine/chloroquine
Editor Note (from ophthalmology ... Hydroxychloroquine/chloroquine should ... pathology" should ... in setting of short ... highlighted circle= clinical
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Pathogenesis and Clinical ... Impaired extra-ocular ... Orbital #Cellulitis #pathophysiology ... #ophthalmology ... #diagnosis #signs
Periorbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Dacryoadenitis: infection of the lacrimal glands
b. Conjunctivitis: inflammation of the
Pathogenesis and Clinical ... Note: Eye exam should ... normal: - extra-ocular ... #ophthalmology ... #diagnosis #signs
Ocular Globe Rupture on POCUS

A patient presents with eye pain and is unable to open his
Ocular Globe Rupture ... of the sclera supports ... rupture ("flat tire sign ... #Ophthalmology ... #clinical #ultrasound
Retrobulbar Hematoma and Guitar Pick Sign on Ocular POCUS
Which of the following is NOT present in
and Guitar Pick Sign ... on Ocular POCUS ... #Ocular #POCUS ... #Ophthalmology # ... clinical #ultrasound
Papilledema on Ocular POCUS

Eye, linear probe, optic nerve (ON) elevation >0.6 mm into globe (crescent sign)
Papilledema on Ocular ... globe (crescent sign ... posterior to retina should ... #POCUS #clinical ... #ultrasound #ophthalmology
Age Related Macular Degeneration: Pathogenesis and clinical findings

Photoreceptor atrophy 
-> Extracellular debris (drusen) from RPE atrophy/metabolism
Age Related Macular ... Pathogenesis and clinical ... - Faded/blind spots ... MacularDegeneration #pathophysiology ... #ophthalmology
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
Pathogenesis and clinical ... -> Cotton-wool Spots ... #Retinopathy #pathophysiology ... #ophthalmology ... #diagnosis #signs