834 results
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Orbital Cellulitis ... anterior to the orbital ... Inflammation of orbital ... • Involves the orbit ... #Cellulitis #pathophysiology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
red reflex) • Orbital ... Retinoblastoma #pathophysiology
Periorbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Dacryoadenitis: infection of the lacrimal glands
b. Conjunctivitis: inflammation of the
preseptal compartment/orbital ... Periorbital #Cellulitis #pathophysiology
Scurvy (Vitamin C Deficiency) - Diagnosis and Management

Vitamin C is required for hydroxylation of proline residues
periorbital, or orbital ... weeks #Scurvy #Pathophysiology ... #AscorbicAcid #Pathophysiology
Tolosa-Hunt Syndrome
What?
 • Unilateral orbital/retrobulbar pain
 • Paresis of the cranial nerves Ill, IV, VI
 •
• Unilateral orbital ... sinus, superior orbital ... fissure or orbit
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
thrombosis) - Orbital ... Vascular - Orbital ... hemangioma - Orbital ... Tvumor - Orbital ... - Spheno-orbital
Lateral Canthotomy / Cantholysis - Procedure Instructions

The orbit is a relatively closed compartment and an acute
Instructions The orbit ... acute increase in orbital
Atraumatic Red Eye - Differential Diagnosis Algorithm
Lids / Orbit / Lacrimal System:
 • Blepharitis
 • Stye
Algorithm Lids / Orbit ... cellulitis • Orbital
Preseptal Cellulitis vs Orbital Cellulitis
Preseptal Cellulitis
 • Unlikely to have complications
 • Due to external source
Cellulitis vs Orbital ... Strep, Anaerobes Orbital ... #Preseptal #orbital
Orbital Emphysema following ocular trauma and sneezing.

#Orbital #Emphysema #ocular #physicalexam #ophthalmology #clinical #video #crepitus
Orbital Emphysema ... #Orbital #Emphysema