921 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
production -> Corneal ... conjunctiva and cornea ... blindness) • Corneal ... dryness of the cornea ... #Xeropthalmia #pathophysiology
Trachoma: Pathogenesis and clinical findings

 • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
of the limbal cornea ... the peripheral cornea ... fibrosis => • Corneal ... Trachoma #Chlamydia #pathophysiology
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
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations
Vectorial Transmission
-> Onchocerca volvulus, a parasitic helminth, matures in to
stromal keratitis -> Corneal ... RiverBlindness #pathophysiology
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Bilateral, asymmetric corneal ... Rizutti's Sign • Corneal ... #Keratoconus #pathophysiology
Rheumatoid arthritis (RA): X-ray features
 • Soft tissue swelling (best seen by comparing left & right
at the exposed corners ... Radiology #Clinical #Pathophysiology
Astigmatism: Pathogenesis and clinical findings
Astigmatism - deviation from spherical curvature of the lens or eye

Refracting power
Refracting power of the cornea ... rule astigmatism: cornea ... rule astigmatism: cornea ... passing through the cornea ... #astigmatism #pathophysiology
Swirling flow of aqueous humor
Aqueous humor flows from the posterior chamber of the eye to the
chamber, behind the cornea ... ophthalmology #pathophysiology
Hyperopia: Pathogenesis and clinical findings
 • Axial length of eye -> Short axial length of the
of the eye (ex. cornea ... #Hyperopia #pathophysiology
Cornea Anatomy
#Anatomy #Ophthalmology #Corneal #Bowmans #Descemets #Membrane
Cornea Anatomy # ... Ophthalmology #Corneal