This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
[{'content': 'A young male presents with central scotoma in left eye. His right vision showed 6/6 vision. On examination, in the left eye, there was focal foveal detachment in fundoscopy. What would be the next step? \nSelect and explain. \nA. Examine retrolental cells, B. Inquire about the use of steroids, C. Ask for history of tranuma in the other eye, D. Examination under slit lamp', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Using of steroids may cause detachment of focal fovea. Ref khurana 6/e', 'role': 'assistant'}]