Cotton Wool Exudate
Hard Exudate
Blot Hemorrhage
Flamed Hemorrhage
10%
30%
50%
70%
Glaucoma
Keratoconus
Corneal abnormality
Cataract
Iris Neovascularisation
Distortion
Floaters
Blurred vision
Red eyes
Asymptomatic
Aldose reduce and vasoproliferative factor
Macular oedema
Neovascularisation
Hypoxia
Hyperlipidemia
3-4%
6-7%
7-8%
8-9%
True
False
True
False
True
False
True
False
True
False
True
False
True
False
True
False
Microaneuryms
Macroaneuryms
Neovascularisation
Venous changes
Exudates
Retinal detachment
Cotton wool spots
Ptosis
Fibrosis
To destroy areas of retinal ischaemia
To seal leaking microaneuryms and reduce macular oedema
To gliose new vessels directly on the retinal surface
To gliose new vessels on the optic disc
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