Hard Exudates - D/D
Caused by chronic localized retinal edema.
They develop at the junction of normal and edematous retina.
They are composed of lipoprotein and lipid-filled macrophages.
Location: Mainly OPL and INL.
Hyperlipidaemia may increase the likelihood of exudate formation.
HOW TO DESCRIBE THEM:
Waxy yellow lesions with distinctmargins arranged in clumps and/or rings at the posterior pole.
When leakage stops, exudates get absorbed over months, either into healthy surrounding capillaries or by phagocytosis.
On FFA: Seen as hypo-fluorescent.
www.ophthalmobytes.com
Image from Rajan Eye Care Hospital
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