This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
[{'content': 'Uveal effusion syndrome may be associated with all of the following, Except – \nSelect and explain. \nA. Myopia, B. Ciliochoroidal detachment, C. Structural defect in Sclera, D. Nanophthalmos', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Uveal Effusion Syndrome (Ciliochoroidal Effusion) \n\nUveal effusion syndrome is an idiopathic disease of the retina and choroid characterized by abnormal accumulation of serous fluid in the outer layer or ciliary body or choroids.\nMain Features of uveal effusion syndrome are:-\n\n1)\xa0Structurally abnormal sclera (Thick sclera)\n\nSclera contains high levels of abnormal proteoglycans which bind and trap large volumes of water. Thus the sclera thickens and may secondarily obstruct the choroidal venous drainage.\n\n2) \xa0Abnormal accumulation of serous fluid in the outer layer of the ciliary body and choroids\n\nA detachment of Ciliary body (Exudative)\xa0-\xa0Ciliochoroidal detachments\nA detachment of Choroid (Exudative) -\xa0Ciliochoroidal detachments\n\n\nA detachment of Retina (Exudative)\n\n\nThe absence of inflammation or neoplastic disease (Low-grade inflammation may be seen )\nEyes may be nanopthalmic (small) or hypermetropic\n\n\nPhthisis and hypotonia are usually due to ciliary body shut down from chronic detachment which compromises the blood supply to the ciliary processes.\n\n3) \xa0Mottling of pigment epithelium (Leopard spots) may be seen\n\nUveal effusion syndrome is frequently confused clinically with ring melanoma of the ciliary body/ choroids and metastatic tumors which form an important differential diagnosis of this condition.', 'role': 'assistant'}]