3. Exudates and Blood in the Retina

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What are hard exudates?
- lipid accumulation
- leaking from capillaries and microaneurysms
- circinate pattern
- aging and dry amd
What do hard exudates look like?
- yellowy
- hard edges
- small, round
What are cotton wool spots?
- occlusion of retinal pre-cap arterioles-> supplies NFL
- NF axons swell
What do cotton wool spots look like?
- white/grey and fluffy
- kinda biggish
What do soft drusen look like?
- largish, grey-yellow-white lesions
- coalescence: AMD
What is an emboli?

travel via circulation from one part of body and cause occlusio of a blood vessel in another part of the body
What is the diff between emboli and thrombus/blood clot?
- emboli: comes from another part of the body via circulation
- thrombus: forms at the blockage point
What is amaurosis fugax?

transient monocular visual disturbance
Sx of amarousis fugax?
- curtain coming down/up
- grayness of vision
- '-> hr
- >1hr: STROKE
What is TIA?
- transient ischaemic attack
- sign of stroke
- goes away within 24hrs
- lasts ' to hr
Signs of Stroke?
- FAST
- F: face dropped?
- A: Can raise both arms?
- S: speech slurred?
- T: time is of the essence

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234624

Card Set

3. Exudates and Blood in the Retina

Description

exudates

Updated

2013-11-05T12:40:01Z

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