13. diabetic retinopathy

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Author:
sookylala
ID:
235349
Filename:
13. diabetic retinopathy
Updated:
2013-11-11 06:57:16
Tags:
diabetic retinopathy
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Description:
diabetic retinopathy
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  1. Key features of DR?
    • microaneurysms
    • retinal haemorrhages dot-blot and flame
    • hard exudates
    • cws
    • capillary non-perfusion
    • NVD and NVE
    • macular edema- va
  2. What is CSMO?
    • clinically signiicant macula edema
    • leading cause of va loss in diabetes
    • 1. retinal edema within centre fovea
    • 2. hard exudates
    • 3. retinal edema
  3. IRMA?
    • intraretinal microvascular abnomalities
    • AV shunting bypasses capillary beds
    • fine irregular red vessels from A->V
    • FA: NO LEAKAGE cf NV
  4. Ischaemic maculopathy?
    • due to drop out of perifoveal capillaries with non perfusion
    • increased FAZ
  5. Mild non-proliferative DR?
    • microaneurymsm
    • dot-blot
    • hard exudates
  6. milk-mod non proliferative DR?
    • micr, dot, hard exu
    • CWS, venous beading and loops, IRMA
  7. severe NPDR?
    • 4-2-1
    • 4: sever haem
    • 2- venous beading/loops
    • 1- IRMA
  8. Very severe NPDR?
    2 or more of 4-2-1
  9. PDR?
    • retinal ischemia->non perfusion-> VEGF-> NV-> haem
    • rubeosis iridis-> NVG
  10. mild-mod PDR?
    NVE, NVD, NVI
  11. high risk PDR?
    • retinal detachment
    • haemorrhages
  12. sx of RD?
    • blurry
    • diplopia
    • VA loss
  13. tx for DR?
    • CSMO: laser photocoagulation
    • NV: laser photocoagulation to ablate vessels- stops VA from worsening
    • Vitrectomy- removes vit haem and fibro attached to vitreous
    • oral angiogenics-> PDR

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