Causes Of Exudative are: Malignant hypertension, toxaemia of pregnancy, choroidal tumors, Choroidal neovascularization, post scleritis,  V KH disease, D I C idiopathic, thrombocytopenic, Purpura, Optic disc pit maculopathy, Nanophthalmos, subretinal cysticercus hydatid.