This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous Humour, Uveal Disorders, Subject name: Ophthalmology
Neo Vscularization of iris is not seen in: 
Select and explain. 
A. CRVO, B. Pigment dispersion syndrome, C. Ocular Ischemic Syndrome, D. Diabetic retinopathy
B: Pigment dispersion syndrome
Answer: B: Pigment dispersion syndrome 
Explanation: Neovascularization of iris is not seen in pigment dispersion syndrome. Neovascularization of Iris. Seen in the conditions where there is VEGF release post inflammation. Can cause neovascular glaucoma. Rx: PRP followed by trabeculectomy/shunt. Causes: PDR CRVO Ocular ischemic syndrome Central Retinal Aery Occlussion Sickle cell Anemia Vasculitis