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': "Which of the following condition is typically associated with bilateral inferior lens subluxation of the lens? \nSelect and explain. \nA. Ocular trauma, B. Homocystinuria, C. Hyperinsulinemia, D. Marfan's syndrome", 'role': 'user'}, {'content': 'Answer: B \nExplanation: In homocystinuria, there is bilateral subluxation of the lens downwards and nasally. Other systemic features found in this condition are fair complexion, malar flush, mental retardation, fits and poor motor control. Ref: Comprehensive Ophthalmology By A K Khurana, 4th Edition, Pages 202-3.', 'role': 'assistant'}]