This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Retina, Subject name: Ophthalmology
[{'content': 'Ocular manifestations of dengue are all except \nSelect and explain. \nA. Cataract, B. Maculopathy, C. Vitreous hemorrhage, D. Optic neuropathy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) CataractRef: American Academy of Ophthalmology, BSCS, Section 9/p. 219* Dengue fever - caused by Flaviviridiae and transmitted by Aedes aegyptiOcular manifestations* Petechial subconjunctival hemorrhage - most common manifestation* Maculopathy (bilateral and asymmetric) - in 10% patients after one month of onset of systemic disease, causing sudden loss of vision and central scotoma* Optic disc hyperemia* Intraretinal hemorrhages with periphlebitis* Yellow subretinal dots* RPE mottling* Fovealitis', 'role': 'assistant'}]