This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Which of the following is not a prognostic significance in choroidal melanoma \nSelect and explain. \nA. Presence of retinal detachment, B. Size of tumor, C. Cytology of tumor cella, D. Presence of extraocular extension', 'role': 'user'}, {'content': "Answer: A \nExplanation: Commonly choroidal melanomas break through the bruch 's membranes and lead to exudative retinal detachment. Hence, it is not considered as a prognostic factors Refer khurana 6/e 298", 'role': 'assistant'}]