This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
[{'content': 'Glaucomflecken is - \nSelect and explain. \nA. Acute uvetis due to glaucoma, B. Lens opacity due to glaucoma, C. Retinal detachment due to glaucoma, D. Corneal opacity due to glaucoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glaucomflecken (anterior subcapsular lenticular opacity) Ref comprehensive ophthalamology AK Khurana 4th edition page no:230', 'role': 'assistant'}]