19 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

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

 • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
superior tarsal conjunctiva ... Extensive upper tarsal conjunctival ... trauma • Decreased ... Trachoma #Chlamydia #pathophysiology ... #ophthalmology
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
of the bulbar conjunctiva ... inflammation -> Conjunctival ... -> Corneal drying ... Orbital #Cellulitis #pathophysiology ... #ophthalmology
Graphite Corneal Trauma - Slit Lamp Ocular Examination

Graphite remains due to trauma with a pencil.

Dr. Sebastian
Graphite Corneal ... Trauma - Slit Lamp ... remains due to trauma ... #Ocular #PhysicalExam ... clinical #video #ophthalmology
Approach to an Eye Exam

1. History
2. Obvious Physical Trauma
3. Initial Assessment
  A. Visual Acuity
Obvious Physical Trauma ... Sclera/ Conjunctiva ... Cornea D. ... EyeExamination #Approach #Ophthalmology ... #PhysicalExam
Traumatic Red Eye - Differential Diagnosis Algorithm
Surface Injury:
 • Corneal Abrasion
 • Ultraviolet Keratitis
 • Chemical
Surface Injury: • Corneal ... alkali) Blunt Trauma ... Laceration • Conjunctiva ... hemorrhage • Cornea ... Algorithm #Causes #Ophthalmology
Corneal Abrasion on Slit Lamp Ocular Examination

Seidel + in a patient with a beveled corneal wound
Corneal Abrasion ... secondary to nail trauma ... #Abrasion #Cornea ... fluorescein #Ocular #PhysicalExam ... clinical #video #ophthalmology
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations
Vectorial Transmission
-> Onchocerca volvulus, a parasitic helminth, matures in to
directly from the conjunctiva ... stromal keratitis -> Corneal ... RiverBlindness #pathophysiology ... #ophthalmology
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
cellulitis • Globe trauma ... vein occlusion Conjunctiva ... • Trauma? ... Conjunctivitis • Conjunctival ... differential #diagnosis #ophthalmology
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Conjunctiva/Sclera ... Cornea 5. ... Trauma Cornea ... • Iritis Conjunctiva ... differential #diagnosis #ophthalmology