The Calgary Guide to Understanding Disease @TheCalgaryGuide
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diagnosis signs symptoms complications glaucoma cellulitis secondary acute agerelated aqueoushumor astigmatism centralretinalartery chemicalinjury chlamydia chronic closedangle crao diabetes diabetic drainage
Xeropthalmia: Pathogenesis and Ocular Manifestations Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
Pathogenesis and Ocular ... focal melting) -> Retinopathy ... #Xeropthalmia #pathophysiology ... #ophthalmology
Diabetic Retinopathy: Pathogenesis and clinical findings Mild Non-proliferative DR • Outpouchings of the weakened capillary walls or
Diabetic Retinopathy ... #Diabetic #Retinopathy ... #Diabetes #ophthalmology ... complications #pathophysiology
Aqueous Humor Production and Drainage • Provides nutrition, removes wastes, and transports neurotransmitters to the avascular
structural integrity of ocular ... Pathway (~60-80 % of flow ... ciliary body -> Flows ... #Pathophysiology ... #ophthalmology
Chronic Hypertensive Retinopathy: Pathogenesis and clinical findings Ophthalmic Artery Hypertension Stage 1: Mild/vasoconstrictive • Acute and chronic vasospasm
Chronic Hypertensive Retinopathy ... #Hypertensive #Retinopathy ... #pathophysiology ... #ophthalmology
Onchocerciasis “River Blindness”: Pathogenesis and Ocular Manifestations Vectorial Transmission -> Onchocerca volvulus, a parasitic helminth, matures in to
Pathogenesis and Ocular ... RiverBlindness #pathophysiology ... #ophthalmology
Age Related Macular Degeneration: Pathogenesis and clinical findings Photoreceptor atrophy -> Extracellular debris (drusen) from RPE atrophy/metabolism
Age Related Macular ... reduces blood flow ... Amsler grid) - Macular ... MacularDegeneration #pathophysiology ... #ophthalmology
Orbital Cellulitis: Pathogenesis and Clinical Findings Definitions: a. Chemosis: Edema of the bulbar conjunctiva b. Panopthalmitis: inflammation of all
- Impinges on ocular ... Impaired extra-ocular ... Orbital #Cellulitis #pathophysiology ... #ophthalmology
Central Retinal Artery Occlusion: Pathogenesis and clinical findings • Inflammatory Disease: (i.e. GCA, SLE, GPA) ->
Abnormal blood flow ... narrowing • Slow ... retinal artery blood flow ... Occlusion #CRAO #pathophysiology ... #ophthalmology
Trachoma: Pathogenesis and clinical findings • Environmental Factors -> Bacterial infection is encouraged by poor hygiene
from nasal or ocular ... Trachoma #Chlamydia #pathophysiology ... #ophthalmology
Acute Closed Angle Glaucoma: Pathogenesis and Clinical Findings OPHTHALMIC EMERGENCY: Early detection is essential, but most patients
-> crowding of ocular ... resistance to the flow ... ClosedAngle #Glaucoma #pathophysiology ... #ophthalmology
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