Ophthalmology Station5 Handout
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Transcript of Ophthalmology Station5 Handout
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______________________________________________________________________________EGERTON COURT, PARKGATE ESTATE, KNUTSFORD, CHESHIRE WA16 8DX, ENGLAND
TELEPHONE: 01565 752000 FAX: 01565 650264
MRCP 2 PACES CLINICAL COURSE
OPHTHALMOLOGY STATION
HOW TO APPROACH A FUNDAL EXAMINATION:
DO NOT PANIC!
Copyright 2008 PasTest Ltd
The material in the folder is strictly copyright 2008 by PasTest Ltd. Under no circumstances may this material be photocopied orreproduced by any means whatsoever without the prior permission of PasTest Ltd. The information contained within this binder
was obtained from reliable sources. However, while every effort has been made to ensure its accuracy, no responsibility for loss,damage or injury occasioned to any person acting or refraining from action as a result of information contained herein can beaccepted by PasTest Ltd.
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Ophthalmology
PasTest Ltd
1) PICTURE AS A WHOLE- Diabetes: Microaneurisms, Exudates,
Venous beading, IRMA (intraretinal micro vascular abnormalities)
New vessels on the disc
New vessels elsewhere
- CRVO : Diffuse haemorrhages 4 quadrantsOptic disc swollen in severe cases
Think causes for thrombosis: HT, diabetes, hyperviscosity etc
- CRAO: Doctors sees nothing, patient sees nothing
pale fundus
cherry red spot during first few months
missing arteries
Think causes for occlusion: GCA, carotid stenosis etc
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Ophthalmology
PasTest Ltd
- Hypertensive retinopathy Narrowing of arteries
AV nipping
CWS, flame shaped haemorrhages, exudates
Disc swelling, macular star
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Ophthalmology
PasTest Ltd
2) RETINAL PERIPHERY- Black spots laser scars (diabetes, CRVO)
retinitis pigmentosa
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Ophthalmology
PasTest Ltd
3) OPTIC DISCCupping glaucoma (MRCOphth not MRCP)
Contour disc swelling: disc hyperemia, fluffy nerve fibers, disc
haemorrhages
One disc swollen: optic neuritis
GCA
AION
CRVO, HT retinopathy, TED,
neuro-retinitis (rare!)
Lebers optic neuropathy (mitochondrial,
rare!)
Both swollen: SOL brain
Idiopathic intracranial hypertension (IIH)Meningitis
Cavernous sinus thrombosis
Beware of drusen (pseudo-swelling)
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Ophthalmology
PasTest Ltd
Colour Pale After swelling (optic neuritis, GCA, TED, Lebers)
Compressive (meningioma, leukaemia)
Toxicity (ethambutol, isoniazide, amiodarone, lead
ethylene glycol (anti-freeze fluid)
vit B deficiency in alcoholics aka tobacco-alcohol
amblyopia
Ischemia (AION)
Post-trauma
Infective (syphilis, neuro-retinitis)
Granulomatous disease (sarcoidosis)
4) MACULA Oedema Diabetes (circinnate)
Scarring Chorio-retinitis (toxoplasma, sarcoid)
ARMD (grayish membrane, extensive scarring)
Angioid streaks (assoc. with pseudoxanthomaelasticum)
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Ophthalmology
PasTest Ltd