This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Uveal tract, Subject name: Ophthalmology
[{'content': 'True about heterochromic uveitis - \nSelect and explain. \nA. Involves posterior surface of iris, B. Involves anterior pa of iris, C. Involves posterior chamber, D. Posterior synechiae', 'role': 'user'}, {'content': 'Answer: B \nExplanation: It is a chronic non-granulomatous type of low grade anterior uveitis typically associated with early cataract formation. Shows moth- eaten appearance of iris, absence of posterior synechiae. Typically occurs unilaterally in middle aged persons. Treatment : topical steroids. Ref: khurana page no.168', 'role': 'assistant'}]