13 results
Amblyopia ("Lazy Eye"): Pathogenesis and clinical findings
Amblyopia => 
Interruption of visual stimulation during childhood visual development
Eye"): Pathogenesis ... eye -> Atrophy ... primary visual cortex ... #LazyEye #pathophysiology ... #ophthalmology
Amblyopia - Lazy Eye - Differential Diagnosis Algorithm
Deprivational - Obstruction of Visual Axis:
 • Ptosis
 •
Eye - Differential ... • Congenital Corneal ... Hemangioma • Retinal ... #LazyEye #Differential ... Algorithm #Causes #Ophthalmology
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
• Loss of the eye ... non-functional eye ... #Xeropthalmia #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Hyperopia: Pathogenesis and clinical findings
 • Axial length of eye -> Short axial length of the
(ex. cornea, lens ... point behind the retina ... focused onto the retina ... #Hyperopia #pathophysiology ... #ophthalmology
Approach to an Eye Exam

1. History
2. Obvious Physical Trauma
3. Initial Assessment
  A. Visual Acuity
Approach to an Eye ... Accommodation, RAPD ... Cornea D. ... Retina B. ... EyeExamination #Approach #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 #symptoms
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Conjunctivitis, corneal ... Blepharitis Cornea ... Unilateral or bilateral symptoms ... • Corneal ulcer ... differential #diagnosis #ophthalmology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
Retinoblastoma Signs / Symptoms ... detachment • Red Eye ... Retinoblastoma #pathophysiology ... #ophthalmology ... diagnosis #signs #symptoms
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Contact lens use • Eye ... Bilateral, asymmetric corneal ... Keratoconus Signs / Symptoms ... #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 ... Occurs in small eyes ... obstruction • Corneal ... ClosedAngle #Glaucoma #pathophysiology ... #ophthalmology