<prompt> All are the causes of neovascular glaucoma exceptCentral serous retinopathyDiabetic retinopathylntraocular tumourCentral retinal vein occlusion  <response>: NEOVASCULAR GLAUCOMA NVG It is an intractable glaucoma which results due to formation of neovascular membrane involving the angle of anterior chamber. Etiology: It is usually associated with neovas cularization of iris rubeosis iridis. Neovascularization develops following retinal ischaemia, which is a common feature of : 1 Diabetic retinopathy, 2Central retinal vein occlusion, 3Sickle-cell retinopathy and 4Eales disease. Other rare causes are chronic intraocular inflammations, intraocular tumours, long-standing retinal detachment and central retinal aery occlusion. Ref:- A K KHURANA; pg num:- 234 