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': 'Snowball opacities are seen in - \nSelect and explain. \nA. Acute anterior uveitis, B. Posterior uveitis, C. Pars planitis, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Snowball or cotton ball opacities (Ant&;s eggs) refers to typical exudates present near the ora serrata on the inferior quadrant. It is the posterior segment sign in pars plannitis (intermediate uveitis).', 'role': 'assistant'}]