10 results
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
Orbital Cellulitis ... #Cellulitis #pathophysiology ... #ophthalmology ... #diagnosis #signs ... #symptoms
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Anatomical Approach to Eye ... abrasion • Astigmatism ... • Floaters Orbit ... : • Orbital cellulitis ... differential #diagnosis #ophthalmology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
• Loss of the eye ... #Xeropthalmia #pathophysiology ... #ophthalmology ... #diagnosis #signs ... #symptoms
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
red reflex) • Orbital ... detachment • Red Eye ... Retinoblastoma #pathophysiology ... #ophthalmology ... #symptoms
Astigmatism: Pathogenesis and clinical findings
Astigmatism - deviation from spherical curvature of the lens or eye

Refracting power
of the lens or eye ... : cornea is steepest ... of focus on the retina ... #pathophysiology ... #ophthalmology
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Conjunctivitis, corneal ... ophthalmicus • Orbital ... cellulitis • Globe ... Unilateral or bilateral symptoms ... differential #diagnosis #ophthalmology
Periorbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Dacryoadenitis: infection of the lacrimal glands
b. Conjunctivitis: inflammation of the
preseptal compartment/orbital ... #pathophysiology ... #ophthalmology ... #diagnosis #signs ... #symptoms
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Contact lens use • Eye ... / Symptoms / Complications ... • Rizutti's Sign ... #Keratoconus #pathophysiology ... #ophthalmology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
present with a red eye ... damage & blindness Signs ... obstruction • Corneal ... ClosedAngle #Glaucoma #pathophysiology ... #ophthalmology
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
hypothalamus, and visual cortex ... - Autonomic symptoms ... meningeal irritation signs ... Disorder of the eyes ... differential #diagnosis #ophthalmology