Make a handrawn easily reproducible diagram of hypertensive retinopathy for my opthalmology theory exam
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In the meantime, here's a text-based reproducible diagram you can sketch by hand for your exam:
Hypertensive Retinopathy — Hand-drawn Diagram Guide
HYPERTENSIVE RETINOPATHY
(Right Fundus — Schematic View)
12 o'clock
|
___________ | ___________
/ \ | / \
| Cotton-wool * * Flame |
| spot [1] ( ) haemorrhage[2] |
| |O| |
| Hard --> | | <-- AV |
| Exudates[3] | | Nipping[4] |
\ _____|_|_____ /
\ / DISC [5] \ /
\ / (papilloedema\ /
\ / in severe) \/
\/
Macular
Star [6]
Legend & Key Features by Grade (Keith-Wagener-Barker)
| Grade | Features to Draw |
|---|---|
| I | Arteriolar narrowing (thin arteries vs veins), increased light reflex ("silver/copper wiring") |
| II | AV nipping (artery compresses vein at crossings) |
| III | Flame haemorrhages, cotton-wool spots, hard exudates |
| IV | All of above + papilloedema (disc swelling, blurred margins) |
Sketching Tips
- Circle = optic disc (nasal side), oval = macula (temporal)
- Arteries = thinner, brighter red; Veins = wider, darker
- Flame haemorrhages = irregular red streaks along nerve fibre layer
- Cotton-wool spots = fluffy white patches (nerve fibre infarcts)
- Hard exudates = sharp-edged yellow deposits; in a ring around macula → macular star
- AV nipping = draw vein appearing to "pinch" where artery crosses over it
- Silver wiring = artery looks like a silver thread (increased wall reflex)
This should be fully reproducible from memory in an exam setting. Upgrade your plan to get a proper rendered illustration!
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