13 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
production -> Corneal ... conjunctiva and cornea ... #Xeropthalmia #pathophysiology ... #ophthalmology ... #diagnosis #signs
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
> Keratoconus Signs ... • Rizutti's Sign ... • Corneal Opacities ... #Keratoconus #pathophysiology ... #ophthalmology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
papilledema • Horner ... • Meningeal signs ... Systemic symptoms and signs ... angle closure glaucoma ... Diagnosis #Algorithm #neurology
Retinoblastoma: Pathogenesis and clinical findings
 • Sporadic mutation -> One allele of RB1 tumor suppressor gene
Retinoblastoma Signs ... • Secondary glaucoma ... Retinoblastoma #pathophysiology ... #ophthalmology ... #diagnosis #signs
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings
OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
Acute Closed Angle Glaucoma ... damage & blindness Signs ... obstruction • Corneal ... #pathophysiology ... #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
Photophobia and Headache - Differential Diagnosis Framework

Why?
• The coexistence of photophobia and headache suggests the potential
hypothalamus, and visual cortex ... meningeal irritation signs ... angle-closure glaucoma ... differential #diagnosis #ophthalmology ... #Neurology
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings

Ophthalmic Artery Hypertension
Stage 1: Mild/vasoconstrictive
 • Acute and chronic vasospasm
red-brown coloured -> Copper ... #Retinopathy #pathophysiology ... #ophthalmology ... #diagnosis #signs
The Neurological Evaluation of a Comatose Patient

Definition:
 • Coma: a state of unresponsiveness; the absence of
• Mutism Pathophysiology ... the bilateral cortex ... light reflex • Corneal ... • Examine for signs ... #PhysicalExam #neurology
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
monophasic Pathophysiology ... • Bilateral signs ... Vitamin B12 and copper ... Vitamin B12, E, D, copper ... diagnosis #management #neurology