This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
[{'content': 'The only condition amongst the following associated with cystoid macular edema is? \nSelect and explain. \nA. Overuse of ocular analgesics, B. Glaucoma, C. Central Retinal Vein Occlusion, D. Topical steroid therapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Central Retinal Vein OcclusionRef : A.K. Khurana 6th ed. /214, 271, 294CYSTOID MACULAR EDEMA (CME)* Collection of fluid in the outer plexiform (Henle\'s layer) a nuclear layer of the retina is called CME.* It is associated with Central Retinal Vein Occlusion/ post operative complication of cataract extraction and penetrating keratoplasty/ diabetic retinopathy/ Retinitis pigmentosa* Minimal to moderate loss of vision is seen.* It is best examined with slit lamp/+90D lens* Ophthalmoscopy shows "honeycomb appearance" of macula.* Fundus flurorescein angiography shows "flowerpetal appearance".* Treatment of underlying primary cause and drugs (topical steroids triamcinofone/ topical NSAIDs like flurbiprofen) is beneficial.Also Know* 100 day glaucoma\' is seen with CRVO* CATTLE TRUCK appearance seen with CRAO* IRVIN GASS SYNDROME is seen with post cataract CME', 'role': 'assistant'}]