15 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
production -> Corneal ... conjunctiva and cornea ... #Xeropthalmia #pathophysiology ... #ophthalmology ... #diagnosis #signs
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Bilateral, asymmetric corneal ... > Keratoconus Signs ... • Rizutti's Sign ... #Keratoconus #pathophysiology ... #ophthalmology
Traumatic Iritis 
High pressure bottle cap to the eye = traumatic iritis + hyphema
This patient was
with hyphema (blood ... , there was no corneal ... globe rupture, so Ophthalmology ... Iritis #Clinical #Photo ... #Ophthalmology
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Proptosis -> Exposes cornea ... -> Corneal drying ... Orbital #Cellulitis #pathophysiology ... #ophthalmology ... #diagnosis #signs
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations
Vectorial Transmission
-> Onchocerca volvulus, a parasitic helminth, matures in to
enter the eye via blood ... stromal keratitis -> Corneal ... RiverBlindness #pathophysiology ... #ophthalmology
Age Related Macular Degeneration: Pathogenesis and clinical findings

Photoreceptor atrophy 
-> Extracellular debris (drusen) from RPE atrophy/metabolism
membrane reduces blood ... > New abnormal blood ... RPE -> Loss of photo ... MacularDegeneration #pathophysiology ... #ophthalmology
Central Retinal Artery Occlusion: Pathogenesis and clinical findings
 • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
defects) -> Abnormal blood ... ) -> Increased blood ... Occlusion #CRAO #pathophysiology ... #ophthalmology ... #diagnosis #signs
Gray-Turner Sign after Liver Biopsy
50 y/o woman with new cirrhosis now s/p liver biopsy.
Gray-Turner sign classically
Gray-Turner Sign ... Gray-Turner sign ... The blood began ... #GrayTurner #Sign ... Flank #clinical #photo
Vitreous Hemorrhage - J. Christian Fox @jchristianfox 
#Clinical #Ophthalmology #POCUS #Ocular #Vitreous #Hemorrhage #Blood #WashingMachine #Sign
jchristianfox #Clinical #Ophthalmology ... #POCUS #Ocular ... Vitreous #Hemorrhage #Blood ... WashingMachine #Sign
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
red-brown coloured -> Copper ... #Retinopathy #pathophysiology ... #ophthalmology ... #diagnosis #signs